HomeMy WebLinkAbout911 - Ordinances - ONSITE WASTEWATER TREATMENT SYSTEMS ORDINANCE NO. 911
ORDINANCE OF THE CITY COUNCIL OF THE CITY OF
RANCHO CUCAMONGA, CALIFORNIA, ADDING TITLE 19,
ARTICLE 28 OF THE RANCHO CUCAMONGA MUNICIPAL
CODE RELATING TO ONSITE WASTEWATER TREATMENT
SYSTEMS
A. Recitals.
1. Assembly Bill 885, enacted in 2000 by the State legislature and codified in section
13290 through 13291.7 of the Water Code, directed the state Water Resources Control Board
(SW RCB) to develop regulations or standards for onsite wastewater treatment systems (OWTS),
to be implemented by qualified local agencies. The SWRCB issued those regulations in 2012 as
its "Water Quality Control Policy for Siting, Design, Operation and Maintenance of Onsite
Wastewater Treatment Systems" (OWTS Policy). The OWTS Policy allows local agencies to
approve alternative OWTS, based on a local ordinance, after approval of a Local Agency
Management Program (LAMP) by the Regional Water Quality Control Board (RWQCB).
2. In coordination with the Santa Ana RWQCB, the City has developed a city-wide
Tier 2 LAMP addressing the required elements of the OWTS Policy.
3. On June 16, 2017, the RWQCB held a public hearing and approved the city-wide
Tier 2 LAMP by Resolution R8-2017-0012.
4. Following RWQCB approval of the city-wide Tier 2 LAMP, the City has prepared
this ordinance in order to implement the LAMP.
5. All legal prerequisites to the adoption of this Ordinance have occurred.
B. Ordinance.
NOW, THEREFORE, the City Council hereby ordains as follows:
SECTION 1. The City Council finds that the facts set forth in the Recitals, Part A, of this
Ordinance are true and correct.
SECTION 2. Chapter 19.28, Onsite Wastewater Treatment Systems, is hereby added to
the Rancho Cucamonga Municipal Code to read as follows:
"Chapter 19.28
Section 19.28.010 Purpose
Section 19.28.020 Definitions
Section 19.28.030 City not responsible for damage.
Section 19.28.040 Public sewer; connection to.
Section 19.28.050 Onsite wastewater treatment systems; when used.
Ordinance No. 911 - Page 1 of 49
Section 19.28.060 Onsite wastewater treatment systems subject to Santa
Ana Regional Water Quality Control Board waste discharge requirements;
City permit required; fee.
Section 19.28.070 General Prohibitions, Violations.
Section 19.28.080 General onsite wastewater treatment systems
applicability standards; OWTS permit required.
Section 19.28.090 OWTS permit application requirements.
Section 19.28.100 OWTS permit fees.
Section 19.28.110 Refusal to issue building permit.
Section 19.28.120 Refusal to issue certification of occupancy.
Section 19.28.130 State contractor's license required for installation or
repair; registration fee.
Section 19.28.140 Construction inspections.
Section 19.28.150 Siting Standards.
Section 19.28.160 Groundwater and Percolation Testing Requirements.
Section 19.28.170 I Septic Tank Requirements.
Section 19.28.180 Leach Line System Requirements.
Section 19.28.190 Vertical Seepage Pit System Requirements
Section 19.28.200 Horizontal Seepage Pit Systems.
Section 19.28.210 Alternative onsite wastewater treatment systems; Use
of alternative systems.
Section 19.28.220 Alternate onsite wastewater treatment systems siting
and operational requirements; Variances permissible.
Section 19.28.230 Sewer wells; cesspools; seepage pits.
Section 19.28.240 Holding tanks; portable toilets.
Section 19.28.250 OWTS located in proximity to impaired water bodies.
Section 19.28.260 OWTS failures; Corrective actions required.
Section 19.28.270 Substandard systems.
Ordinance No. 911 - Page 2 of 49
Section 19.28.280 Abandoned onsite wastewater treatment systems.
Section 19.28.290 Abatement.
Section 19.28.300 Notice of violation.
Section 19.28.310 Appeal from denial, revocation or suspension.
ONSITE WASTEWATER TREATMENT SYSTEMS
19.28.010 Purpose.
The purpose of this chapter is to establish standards for the approval, installation,
and operation of onsite wastewater treatment systems (OWTS) within the City of
Rancho Cucamonga, consistent with the appropriate California Regional Water
Quality Control Board (RWQCB) standards and basin plans. The standards are
adopted to prevent the creation of health hazards and nuisance conditions and to
protect surface and groundwater quality. The City has prepared a Local Agency
Management Program (LAMP) for OWTS permitting and regulation throughout the
City, and that program has been approved the California Regional Water Quality
Control Board for the Santa Ana Region.
19.28.020 Definitions.
As used in this chapter, the following terms and phrases have the following
meaning: I I
Above Ground Dispersal System means a covered sand bed elevated above
original ground surface with an effluent leach field located in the sand bed.
Accessory Structures mean a subordinate habitable building which is incidental
and not attached to the main building or use on the same lot. If an accessory
building is attached to the main building or if the roof is a continuation of the main
building roof, the accessory building shall be considered an addition to the main
building. Includes habitable structures with sanitary sewer plumbing facilities
regardless of whether a Building Permit is required, including, but not limited to,
barns, guesthouses, second dwelling units, garages, storage buildings/sheds, and
pool (swimming) houses/bathrooms.
Basin Plan (or Water Quality Control Plan) means a plan which identifies surface
and ground water bodies within each region's boundaries, and establishes for
each, it's respective beneficial uses, and water quality objectives. Basin plans are
adopted by the Regional Water Quality Control Board (RWQCB) and State Water
Resources Control Board (SWRCB), and are approved by the Office of
Administrative Law.
Bedrock means the rock, usually solid, which underlies soil or other
unconsolidated, surficial material.
Ordinance No. 911 - Page 3 of 49
Building Official means the Building Official for the City of Rancho Cucamonga is
the Building and Safety Services Director and is the officer or other designated
authority charged with the administration and enforcement of the current adopted
California Building Code, or a duly authorized representative.
California Environmental Data Exchange Network (CEDEN) means a central
location to find and share information about California's water bodies, including
streams, lakes, rivers, and coastal oceans.
CCR means California Code of Regulation (CCR, Cal. Code Regs.) is the
codification of the general and permanent rules and regulations (sometimes called
administrative law) announced in the California Regulatory Notice Register by
California state agencies.
Cesspool means an excavation in the ground receiving domestic wastewater,
designed to retain the organic matter and solids, while allowing the liquids to seep
into the soil.
Clay is used to describe a soil particle, or type of soil texture: (i) As a soil: Particle
— clay consists of individual rock or mineral particles having diameters of <0.002
millimeters (mm); (ii) As a texture — clay is a soil material that is comprised of
40%, or more, clay particles, not more than 45% sand, and not more than 40% silt
particles using the United States Department of Agriculture (USDA) soil
classification system.
Cobbles mean rock fragments measuring 76 mm (3 inches) or larger, using the
USDA soil classification systems.
Director means the Director of the Rancho Cucamonga Building and Safety
Services Department.
Dispersal System means a type of system for final wastewater treatment and
subsurface discharge, which may include a leach field, seepage pit, mound,
subsurface drip field, or evapotranspiration and infiltration bed.
Domestic Wastewatermeans Wastewater with a measured strength less than high
strength wastewater, which is discharged from plumbing fixtures, appliances and
other household devices.
Domestic Well means a groundwater well that provides water for human
consumption, and is not regulated by the SWRCB.
Effluent means sewage, water, or other liquid (partially or completely treated, or in
its natural state), flowing out of a septic tank, aerobic treatment unit, dispersal
system, or other OWTS component.
Electronic Deliverable Format (EDF) means the data standard adopted by the
SWRCB for submittal of groundwater quality monitoring data to the State Water
Board's Internet-accessible database system, Geotracker.
Ordinance No. 911 - Page 4 of 49
Existing OWTS means an OWTS that was constructed, operating, and issued a
permit prior to the effective date of the LAMP.
Grease Interceptor means a passive interceptor with a rate of flow exceeding 50
gallons-per-minute located outside a building, and used for separating and
collecting grease from wastewater.
Groundwater means water below the land surface that is at, or above, atmospheric
pressure.
High Strength Wastewater means Wastewater, prior to septic tank or other form of
OWTS treatment component, having: (i) A 30-day average concentration of
Biochemical Oxygen Demand (BOD) greater than 300 milligrams per liter (mg/L),
and/or (ii) Total Suspended Solids (TSS) greater than 330 mg/L, and/or (iii) A Fats,
Oil, and Grease (FOG) concentration greater than 100mg/L.
Impaired Water Bodies1303(d) List means surface water bodies, or segments
thereof, identified on the Section 303(d) list pursuant to the Federal Clean Water
Act, approved by the SWRCB, and the United States Environmental Protection
Agency (EPA).
International Association of Plumbing and Mechanical Officials (IAPMO)means an
association that assists individual jurisdictions, both in the United States and
abroad, to meet their specific needs by coordinating the development and
adaptation of plumbing, mechanical, swimming pools, and solar energy codes.
Local Agency means any subdivision of state government responsible for
permitting, installation, and regulation of OWTS within its jurisdictional boundaries;
typically a county, city, or special district.
Local Agency Management Program (LAMP) means a program for the siting,
design, operation and maintenance of OWTS, developed by a local agency, and
approved by the RWQCB as an alternate method to achieve the same policy
purpose as that of OWTS policy.
Major Repair means a repair for an OWTS dispersal system due to surfacing
wastewater effluent from the dispersal field and/or wastewater backed up into
plumbing fixtures because the dispersal system is not able to percolate the design
flow of wastewater associated with the structure served, or for a septic tank as a
result of compartment baffle failure, or tank structural integrity; failure such that
either wastewater is exfiltrating, or groundwater is infiltrating.
Mottling means a soil condition that: (i) Results from oxidizing or reducing minerals
due to soil moisture changes from saturated to unsaturated over time, and/or (ii) Is
characterized by spots or blotches of different colors or, shades of color(grays and
reds), interspersed within the dominant color as described by the USDA soil
classification system, and/or (iii) May indicate historic seasonal high ground water
levels.
Ordinance No. 911 - Page 5 of 49
Mound System means an above ground dispersal system, having subsurface
discharge, used to enhance soil treatment, dispersal, and absorption of effluent
discharged from an OWTS treatment unit (e.g., septic tank).
National Sanitation Foundation (NSF) International means a not for profit, non-
governmental organization which develops health and safety standards, and
performs product certification.
New Development means a proposed tract, parcel, industrial, or commercial
development which has not been granted one or more of the following, on or prior
to approval of the LAMP: (i) Approval, or conditional approval, of a tentative parcel
or tract map by the City of Rancho Cucamonga, and/or(ii)A conditional use permit,
and/or (iii) Approval, or conditional approval, from the City of Rancho Cucamonga
Planning Department, and/or Building and Safety Services Department.
New OWTS means an OWTS permitted after the effective date of this LAMP.
Notice of Condition means a site specific document that is provided to the
customer by Building and Safety Services. It is the owner's responsibility to ensure
the document is recorded with the County Recorder's office.
OWTS means onsite wastewater treatment systems that use subsurface disposal,
including: individual; community collection and disposal; and alternative collection
and disposal systems. This is also referred to as a Private Sewage Disposal
System in the current adopted California Plumbing Code and may also be referred
to in general vernacular by the public as a"septic system". The definition of OWTS
does not include "graywater" systems pursuant to California Health and Safety
Code, Section 17922.12.
Percolation Test means a method of testing water absorption of the soil by using
clean water to determine the dispersal system design.
Permit means a document issued by a local agency that allows the installation,
use, and/or monitoring of an OWTS.
Projected Flows mean wastewater flows into the OWTS determined in accordance
with any of the applicable methods for determining average daily flow in the
California Plumbing Code.
Public Water System means a system for the provision of water for human
consumption, through pipes or other constructed conveyances, that has 15 or
more service connections (or regularly serves at least 25 individuals daily), at least
60 days out of the year. Per California Health and Safety Code Section 116275(h),
a public water system includes any: (i) Collection, treatment storage, and
distribution facilities under control of the operator of the system that are used
primarily in connection with the system; (ii) Collection or pretreatment storage
facilities not under the control of the operator that are used primarily in connection
with the system; (iii)Water system that treats water on behalf of one or more public
water systems for the purpose of rendering it safe for human consumption.
Public Water Well means a ground water well serving a public water system.
Ordinance No. 911 - Page 6 of 49
Qualified Professional means an individual licensed, or certified by a State of
California agency, to design OWTS and practice as a professional for other
associated reports, as allowed under their license or registration. Qualified
Professionals include the following: (i) Professional Civil Engineers; (ii) Certified
Engineering Geologists; (iii) Registered Environmental Health Specialists
(REHSs); (iv) Registered Geologists; and (v) Geotechnical Engineers.
Replacement OWTS means an OWTS that, after the effective date of this LAMP,
has its treatment capacity expanded or its dispersal system replaced or added
onto.
Regional Water Quality Control Board (RWQCB) means a regional water board
that regulates wastewater discharges to surface water (rivers, ocean, etc.) and to
groundwater (via land). It also regulates storm water discharges from construction,
industrial, and municipal activities; discharges from irrigated agriculture; dredge
and several other activities with practices that could degrade water quality.
Sand means a soil particle or type of soil texture. As a: (i) Soil particle — and
consists of individual rock, or mineral particles, having diameters ranging from 0.05
to 2.Omm; and (ii) Soil texture — Sand is soil that is comprised of 85% or more
sand particles, with the percentage of silt plus 1.5 times the percentage of clay
particles comprising less than 15%.
Seepage Pit means a drilled or dug excavation five (5) to seven (7)feet in diameter
with a liner. It is also gravel filled (between the liner and the soil) and receives
effluent discharge for dispersal from a septic tank or other OWTS treatment unit.
Seepage Pit Cap means a cover placed on the top of the seepage pit liner.
Septage means septic tank sludge, in particular the partially treated sludge stored
in a septic tank or (less commonly) in a pit latrine. It is one type of fecal sludge.
Septage is a by-product from the pretreatment of household wastewater in a septic
tank where it accumulates over time.
Septic Tank means a watertight, covered, receptacle designed for primary
treatment of wastewater and constructed to: (i) Receive wastewater discharged
from a building; (ii) Separate settleable and floating solids from liquid; (iii) Digest
organic matter using anaerobic bacterial action; (iv) Store digested solids, and/or
(v) Clarify wastewater for further treatment with final subsurface discharge.
Service Providermeans a person capable of operating, monitoring and maintaining
an OWTS in accordance with this chapter.
Silt means a soil particle or type of soil texture. As a: (i) Soil particle—Silt consists
of individual rock, or mineral particles, having diameters ranging from 0.05 to
0.002mm; (ii) Soil texture — Silt is soil that is comprised of approximately 80% or
more silt particles, and not more than 12% clay particles using the USDA soil
classification system.
Ordinance No. 911 - Page 7 of 49
Site means the location of the OWTS and/or a reserve dispersal area, capable of
disposing 100% of the design flow from all the sources the OWTS is intended to
serve.
Site Evaluation means an assessment of the characteristics of the site, sufficient
to determine.its suitability for an OWTS that meets the requirements of this LAMP.
Soil means the naturally occurring body of porous mineral and organic materials
on the land surface, which is composed of: (i) Unconsolidated materials, including
sand, silt, and clay sized particles; (ii) Varying amounts of larger fragments and
organic matter; (iii) Earthen material with particles smaller than 0.08 inches (2mm)
in size.
Soil Texture means the soil class that describes the relative amount of sand, clay,
silt, and combinations thereof.
State Water Resources Control Board (SWRCB) means the five member State
Water Board, which develops statewide water protection plans and establishes
water quality standards.
Supplemental Treatment means any OWTS, or component thereof, which
performs additional wastewater treatment so the effluent meets performance
requirements prior to the discharge of effluent into the dispersal field.This excludes
septic and/or dosing tanks.
Structure means a new separate stand-alone building which is separate from the
main structure and does not have a common roof line with the main structure and
which requires a plIumbing permit. I
Surface Water Ambient Monitoring Program (SWAMP) means a unifying program
created to fulfill the Legislature's mandate for the coordination of all water quality
monitoring conducted by the State and RWQCBs. It is managed by a roundtable
of monitoring coordinators from the SWRCB and nine RWQCBs.
Telemetric means the ability to automatically measure and transmit OWTS data by
wire, radio, or other means.
Total Coliform means a group of bacteria consisting of several genera belonging
to the family Enterobacteriaceae, which includes Escherichia coli (E. coli) bacteria.
Tract means the development of more than one (1) lot or parcel, and/or more than
one (1) structure discharging sewage wastes.
USDA means the United States Department of Agriculture which provides
leadership regarding food, agriculture, natural resources, and related issues.
Waste Discharge Requirement means a permit issued for operation and discharge
of waste pursuant to California Water Code Section 13260.
19.28.030 City not responsible for damage.
Ordinance No. 911 - Page 8 of 49
The city is not liable or responsible for damage resulting from the defective
construction of any OWTS as herein provided, nor will the city or any official or
employee thereof be liable or responsible by reason of any inspection authorized
hereunder.
19.28.040 Public sewer; connection to.
A. Every property where there is proposed a residence, place of business, or
other building or place which people occupy, or where persons congregate, reside,
or are employed, and which abuts a street or alley located within an established
sewer service district and outside such districts where required by the RWQCB, or
which property line is within 200 feet of an approved available sanitary sewer, must
be connected to the sanitary sewer in the most direct manner possible, provided a
right-of-way and any necessary approval from the sewer service provider is first
obtained.
B. On property where an OWTS exists, and where such property abuts a
street or alley located within an established sewer service district and outside such
districts where required by the RWQCB, or which property line is within 200 feet of
an approved available sanitary sewer, connection to the available sanitary sewer
will be required at the time of system failure or when the building is remodeled,
increased in square footage or altered in a manner as to change uninhabitable
space into habitable space provided any necessary approval from the appropriate
sewer authority is first obtained.
C. The 200 foot connection requirement in subsections A and B above shall
increase by 100 feet for each additional dwelling unit for any development in
excess of a single family dwelling. For example, a 10 unit development will be
required to connect to an available sanitary sewer if the sanitary sewer is within
1,100 feet [200 + (9 x 100 feet) = 1,100 feet] of the proposed development.
19.28.050 Onsite wastewater treatment systems; when used.
A. Every residence, place of business, or other building, or place where
persons congregate, reside, or are employed, and which cannot be
connected to a sanitary sewer, must be provided with a water flush toilet
connected to an approved OWTS.
B. Every building, structure, or appurtenance that contains one or more waste
producing fixtures such as toilets, sinks, showers or bathtubs, clothes
washing machines, dish washing machines, animal wash pads, floor drains
or other fixture or fittings intended to drain organic or inorganic waste
material must be connected to an approved OWTS that meets the
requirements of this chapter.
C. Subject to local zoning restrictions and planning approval, multiple
buildings on the same parcel, such as a main house and detached living
unit or two or more agricultural housing units, may be served by a common
OWTS located on that parcel, provided the OWTS is determined to have
sufficient treatment and dispersal capacity for the expected wastewater
flow from all buildings or facilities connected to the OWTS.
Ordinance No. 911 - Page 9 of 49
19.28.060 Onsite wastewater treatment systems subject to Santa Ana
Regional Water Quality Control Board waste discharge requirements;
City permit required; fee.
A. Review and approval by the Santa Ana Regional Water Quality Control Board is
required for OWTS in cases where: (a) the peak wastewater flow handled by the
OWTS is more than 10,000 gallons per day; (b) the OWTS is a categorized as a
community system, which serves multiple discharges under separate ownership;
(c) OWTS receiving high strength wastewater, unless the waste stream: (i) is from
a commercial food service facility with BOD less than 900 mg/L and (ii) has a
properly functioning oil/grease interceptor; (d) wastewater treatment plants of any
kind or size; or (e) the Santa Ana Regional Water Quality Control Board has
otherwise determined that their review and approval is necessary and appropriate
for water quality protection. OWTS that are subject to the requirements and
approval of the Santa Ana Regional Water Quality Control Board are also required
to obtain approval of the Director in accordance with the following:
1. The proposed system must be designed to accommodate the waste
discharge consistent with the requirements of the Santa Ana Regional
Water Quality Control Board.
2. The Director will require engineered sewerage plans to be submitted by a
registered civil engineer or a registered environmental health specialist with
experience in OWTS design before issuing a permit.
3. A registered civil engineer, professional geologist or a registered
environmental health specialist will be required to inspect the construction of
the OWTS and, upon completion, to submit a letter of certification to the
Director verifying the proper installation and operation of the OWTS;
4. Site evaluations, plan submittals, design and construction details,
inspection, and operation and maintenance shall be consistent with
guidelines and procedures prescribed by this chapter.
5. The applicant must obtain a permit(s) from the Director and pay a permit
fee(s) in an amount established by resolution of the city council. Obtaining a
land use permit of approval is not a substitute for an OWTS permit issued
by the Building and Safety Services Department, nor does it guarantee
issuance of an OWTS permit.
19.28.070 General Prohibitions, Violations.
A. No person may construct, add to, repair, alter or maintain any OWTS,
sewer pipes or conduits, or any other conduits for the treatment or
discharge of sewage, impure waters, or any matter or substance offensive,
injurious, or dangerous to health so as to cause any of the following to
occur:
Ordinance No. 911 - Page 10 of 49
1. Sewage, impure waters, or any matter or substance offensive,
injurious, or dangerous to health to empty, flow, seep, or drain onto
the surface of any land.
2. Sewage, impure waters, or any matter or substance offensive,
injurious, or dangerous to health to empty, flow, seep, drain into, or
affect any well, spring, stream, river, lake, or other waters.
3. Result in any condition which, in the opinion of the director, is
unsafe or dangerous, or creates a nuisance.
B. A violation of this section is hereby declared a public nuisance.
19.28.080 General onsite wastewater treatment systems applicability
standards; OWTS permit required.
When a community sanitary sewer is not available and the property improvement
will generate wastewater, the property owner must obtain an OWTS Permit from
the City of Rancho Cucamonga Building and Safety Services Department. Any
person, association, partnership or corporation desiring an OWTS Permit shall
make an application to the City of Rancho Cucamonga Building and Safety
Services Department on a form provided by the City. In addition to any
requirements outlined in this chapter 19.28, a lot will be deemed to support onsite
wastewater disposal if the OWTS permit applicant demonstrates the following:
A. Soils are conducive to onsite wastewater disposal;
B. A sanitary sewer is not available within 200 feet of the lot; an additional 100
feet shall be added per each dwelling unit proposed thereafter;
C. Enough area is available to install an OWTS that meets property setbacks.
For new construction, 100% expansion area must be available;
D. OWTS will not impact ground or surface water quality;
E. OWTS is appropriately sized to serve the intended land use; and
F. For new industrial or commercial development projects utilizing septic tank-
subsurface disposal systems, the wastewater flow for each one-half acre
gross area of land may not exceed that from a three-bedroom, two
bathroom single family-dwelling unit. For determining compliance with this
criterion, a flow rate of 300 gallons per day shall be considered as the flow
equivalent to that from a three-bedroom, two-bedroom single-family
dwelling unit. Exemptions will not be granted for industrial or commercial
parcels less than gross one-half acre in size.
19.28.090 OWTS permit application requirements.
The OWTS permit application shall be submitted on a form provided by the City.
In accordance with the requirements of the OWTS permit application, the OWTS
permit applicant must prepare and submit the following supplemental documents:
Ordinance No. 911 - Page 11 of 49
(i)a percolation test, (ii) a proposed layout design, (iii) a grading plan, (iv)a building
plan, (v) access to a potable water supply, (vi) and all preliminary plans required
for all necessary grading and building permits. These supplemental documents
shall be prepared as follows:
A. Percolation Test Required. A percolation test is required when grading or
other soil disturbance has occurred in the proposed OWTS location or if
the applicant desires not to use the City's standard percolation rates. The
applicant shall submit a percolation test report and design as performed by
a registered civil engineer, registered geologist licensed by the State of
California Board of Professional Engineers. All percolation testing shall be
performed in accordance with Section 9.28.160.
B. Layout Design Required. With percolation test data and other data in hand,
the applicant must develop and submit a Layout Design for the proposed
building project and specific OWTS, for review by the City of Rancho
Cucamonga Building and Safety Services Department. All OWTS layout
design proposals shall demonstrate a one hundred (100%) percent reserve
area for the active OWTS. The Layout Design must take percolation test
data into account. In some cases, additional testing will include depth to
groundwater measurements during a normal average rainfall year.
In the alternative, the applicant may use the depth to ground water value
used by the County of San Bernardino Stormwater Facility Mapping Tool.
In some cases, the City of Rancho Cucamonga Building and Safety may
conclude that a conventional or alternative OWTS cannot be safely used
on the lot. Due to the potential for delays or disapproval, City of Rancho
Cucamonga Building and Safety recommends that applicants submit a
Layout Design and obtain an approval before incurring costs for detailed
building plans and architectural fees. The approved Layout Design will
state whether a field check of completed grading by the City of Rancho
Cucamonga Building and Safety Services is required. The Layout Design
Approval shall expire after one year from the date of issuance.
1. A layout design drawing of the proposed building construction and
OWTS is required. This drawing should be prepared using standard
engineer's scale on 8.5" x 11" or 11" x 17" minimum size paper. The
basis for the OWTS design will be from percolation testing data
and/or conditions of approval from a recorded subdivision map,
parcel map, boundary adjustment, or certificate of compliance. The
size of the OWTS is a function of the anticipated peak sewage flow
based on the number of bedrooms, dwellings or use, and the
percolation rate of the soil on the site.
2. The layout design must include the property drawn to the following
minimum scales: (i) Single Family Home or Small Commercial
Properties — 1 inch = 30 feet; (ii) Parcel Map, Subdivisions, Large
Commercial Properties - 1 inch = 40 feet and must also show the
proposed system, and 100%expansion area, including existing and
potential structures, wells, streams, contours, significant vegetation
Ordinance No. 911 - Page 12 of 49
(including trees), rock outcroppings, the location of all borings/tests,
and the proposed house pad.
3. The proposed dwelling or development site must be located so the
initial subsurface sewage disposal system (and the required 100%
expansion area) functions by gravity flow, unless otherwise
approved. When leach lines or pits serve a common system for two
or more units, add 30% more square footage to the total absorption
area, if approved by the Planning Department and Building and
Safety Services Department.
4. The Layout Design shall contain the following information: (i) Site
Address; (ii) Owner's Name, mailing address, and phone number;
Consultant's/Contractor's name, mailing address, and phone
number; (iii) Type of proposed construction residential vs.
commercial); (iv) Number of existing or proposed bedrooms; (v)
Purpose of project (e.g. new dwelling, new structure, guesthouse,
an addition, etc.); (vi) Specify scope of work; (vii) Vicinity Map,
Scale, North arrow, Thomas Bros. Map coordinates; Property Lines
and lot dimensions; (viii) Percent slope and direction of fall; (ix)
Proposed OWTS design detail; (x) All known, recorded easements
on or within 20 feet of lot boundaries (open-space, utility, road,
waterline, etc.); (xi) Source of potable water; Location of all public
waterlines on or within 20 feet of property; (xii) Location of all wells
on or within 200 feet of property; and (xiii) Any soils testing
information, such as deep boring or percolation test, plotted on the
design.
5. In preparing a layout design, the following setback requirements
shall establish minimum spacing requirements from a component
to the OWTS and to structures, property lines, easements,
watercourses, wells, or grading:
Table 19.28.090.B.3. OWTS Setback Requirements.
System Component Setback Minimum Distance
Septic Tank Structure 5 feet
Septic Tank Property Line, including the 5 feet
street/public right-of-way
Septic Tank Water Well 100 feet
Septic Tank Leach Lines 5 feet
Septic Tank Seepage Pits 5 feet
Septic Tank Structure 8 feet
Ordinance No. 911 - Page 13 of 49
Leach Lines Property Line, including the 5 feet
street/public right-of-way
Leach Lines Water Well 100'feet
Leach Lines Leach Lines 4 feet center to center
distance (See Table
19.28.090.6.3, Note 6)
Leach Lines Seepage Pits 5 feet
Leach Lines Water Mains (Public) 25 feet or 10 feet from the
edge of easement
Leach Lines Drainage Course 50 feet from centerline or top
of bank'
Leach Lines Flowing Stream/Creek 100 feet from spillway
elevation
Leach Lines Pond or Lake 100 feet from the high water
line
Leach Lines Water Supply Reservoir 200 to 400 feet from the high
water line
Leach Lines Aqueduct 5:1 setback to pipeline3
Leach Lines Road Easements/ Right-of- 5 feet from ' the edge of
way ultimate easement width
Leach Lines Cut Slopes 5:1 setback from top of cut
slopes
Leach Lines Private Utility Trenches 56feet
Leach Lines Ground Water 5 (vertical) feet
Seepage Pits Structure 8 feet
Seepage Pits Property Line, including the 8 feet
street/public right-of-way
Seepage Pits Water Well 150' feet
Seepage Pits Seepage Pits 12 feet from edge of
excavation
Seepage Pits Water Mains (Public) 25 feet or 10 feet from edge of
easement
Ordinance No. 911 - Page 14 of 49
Seepage Pits Drainage Course 50 feet from centerline or top
of bank'
Seepage Pits Flowing Stream/Creek 100 feet from edge of flow line
or top of bank
Seepage Pits Pond or Lake 100 feet from the spillway
elevation
Seepage Pits Water Supply Reservoir 200 to 400 feet from the high
water linen
Seepage Pits Aqueduct 5:1 setback to pipeline3
Seepage Pits Road Easements/ Right-of- 8 feet from edge of ultimate
way easement width
Seepage Pits Cut Slopes 5:1 set back from top of cut
slopes
Seepage Pits Private Utility Trenches 5'feet
Seepage Groundwater 10 feet (vertical)
Notes:
1. The minimum setback required to a public water well is 150 feet
and increases to 200 feet where the depth of the dispersal system
exceeds 10 feet in depth. The minimum setback may be increased
if site conditions show the minimum setback is insufficient to protect
groundwater supplies.
2. Where the dispersal system is within 1200 feet of surface water
intake point, the setback shall be 400 feet. Where the dispersal
system is greater than 1200 feet of the surface water intake point,
the setback shall be 200 feet.
3. Maximum setback of 100 feet. A reduction in setback to 50 feet
may be considered with engineering to demonstrate no risk of
sewage moving laterally to pipeline trench.
4. The setback may increase if the 5:1 setback to a road cut is
greater than the minimum setback.
5. This maximum 100 foot setback would also be applied to the top
of an eroded bank or natural slope in excess of 60%. A reduction in
setback to 50 feet may be considered with engineering to
demonstrate no risk of sewage surfacing on the face of the bank or
slope.
Ordinance No. 911 - Page 15 of 49
6. For trenches less than 2 feet in depth, a 5:1 setback based on
the trench depth can be used.
7. Setback increases to a 5:1 setback if drainage is greater than 10
foot in depth.
8. Refer to 19.28.090 "Siting Requirements" for other references.
C. Grading Plan Review. Following Layout Design Review, a Grading Plan
Review may be required by the Building and Safety Services Department
as a condition of approval of the OWTS Layout Design. A field check may
also be required upon completion of grading.
D. Building Plan Review. Plans for a new or second dwellings must be
submitted to the Planning Services Department for processing and
approval. Upon submittal of the plans, the owner/agent shall meet with staff
at the City of Rancho Cucamonga Building and Safety Services counter for
a verification of bedrooms and plot plan concurrence with the approved
layout. Bedrooms are used to determine the potential occupancy of a
dwelling and therefore the potential amount of wastewater that will be
generated.
Guidelines for Determining the Number of Bedrooms:
1. Once the living room, dining room,family room, kitchen, bathrooms,
and utility rooms have been established, all other rooms shall be
considered as potential sleeping rooms. Dens, libraries, studies,
weight rooms, sewing rooms, workshops, etc., shall be determined
as bedrooms if they do not conform to the criteria listed below.
2. All other habitable rooms totaling at least seventy (70) square feet
in size are to be considered bedrooms suitable for sleeping
purposes, regardless of whether or not they contain closets or have
direct access to a bathroom.
3. Rooms that open to a living room, dining room,family room, kitchen,
or entry way, and have a single, un-obstructive opening (no doors)
with a minimum 50% opening of the total wall space (minimum 6'
wide) with archways or other acceptable means shall not be
considered as bedrooms, due to the lack of personal privacy
presented by the opening.
4. Rooms that can only be accessed through another bedroom are to
be considered part of that bedroom, such as master suite and not
an additional bedroom.
5. Any cases, which will require the relocation or modification of
doorways, are to be reviewed and approved by the Planning
Department and Building and Safety Services to address any
structural considerations such as load bearing walls. This is to be
Ordinance No. 911 - Page 16 of 49
done prior to approval or sign-off by the City of Rancho Cucamonga
Building and Safety Services.
E. Proof of Potable Water Supply Required. The applicant must demonstrate
the proposed development's access to a potable water supply. A public
water supply should be confirmed with proof of a service availability letter
from the Cucamonga Valley Water District (CVWD), or a water bill showing
the property is served by a local water agency. The use of any new
domestic water well will require proof of potability and be subject to reviews
and approvals by all agencies involved. A copy of the Well Laboratory
Report that indicates the absence of bacteria and nitrate contamination of
less than 10 mg/1 of Nitrate-N or 45 mg/1 of nitrate will be necessary for
proof of potability of a private well. The date of the test cannot be more than
one year old. If a valid test does not exist, the well must be sampled by
client's consultant for bacteriological and nitrate levels. Hand-dug water
wells will not be accepted as a potable water supply.
F. The applicant shall submit all preliminary plans and applications to the
Planning Services Department for review prior to obtaining all necessary
grading and building permits.
G. An OWTS installation permit will be valid for one hundred eighty (180) days,
which period shall commence at the date of issuance. Upon the expiration
of the initial one hundred eighty (180) day period, the property owner or
contractor may request an extension of an additional one hundred eighty
(180) day period.
H. Once the OWTS installation permit has been obtained, the OWTS may be
installed. The OWTS shall be inspected by the city Building and Safety
Services Department before the system may be backfilled. If inspection is
satisfactory, the city shall approve a final OWTS permit. Any change in the
OWTS plans after the issuance of a permit must first be approved by the
Director. Failure to obtain approval from the Director will invalidate the
permit.
I. The approval or permit cannot be transferred. Failure to obtain an OWTS
permit from the Department of Building and Safety Services is a violation
of this chapter. The Director may revoke a permit or approval issued
pursuant to this chapter in case of any false statement, or
misrepresentation of fact in the application or on the plans on which the
permit or approval was based.
19.28.100 OWTS permit fees.
Permit fees for OWTS subject to this chapter and all related fees will be an amount
established by resolution of the City Council.
19.28.110 Refusal to issue building permit.
Ordinance No. 911 - Page 17 of 49
No building permit may be issued for any building requiring a sewage disposal
system that is not to be connected to an approved sanitary sewer unless the
applicant has received an OWTS permit.
19.28.120 Refusal to issue certification of occupancy.
A. No certification of occupancy may be issued for any building that is not
connected to an approved sanitary sewer unless the applicant has received
an OWTS permit.
B. No person may occupy or otherwise use any premises or building that has
not been connected to an approved sanitary sewer or approved OWTS.
19.28.130 State contractor's license required for installation or repair;
registration fee.
A. No person may install, construct, alter, enlarge, reconstruct, replace,
improve, recondition or repair an OWTS pursuant to this chapter unless:
the person possesses a general engineering contractor's license (class A)
as defined in section 7056 of the Business and Professions Code, or a
Class C-42 sanitation system contractor's license or Class C-36 plumbing
contractor's license from the Contractors State License Board of the State
of California.
B. The property owner may construct or repair an OWTS on his/her own
property, which system serves or will serve the building on the property that
is neither being offered for sale nor intended to be so offered, provided:
1. Persons hired by the owner to do the subject work must comply with
section 19.28.080(a); or
2. Persons hired by the owner must be hired as employees of the
owner and the owner must provide workman's compensation
insurance, as required by law; and
3. An OWTS permit is first obtained.
19.28.140 Construction inspections.
A stamped copy of the building plans for the approved OWTS must be kept
available at the jobsite during system installation and until the system passes final
inspection by the Director of Building and Safety Services. Inspections of each new
installation must be made to ensure compliance with all the requirements of this
Code. Requests for inspection must be made at least one business day in advance
of the commencement of work. In the event the Director of Building and Safety
Services determines there has been an improper installation, a stop-work order
maybe posted on the jobsite. Before any further work is done on a posted system,
clearance from the Director of Building and Safety Services must be obtained.
19.28.150 Siting Standards.
Ordinance No. 911 - Page 18 of 49
A. Setback Requirements. The following table provides the minimum
requirements for the installation of OWTS for either new or existing
structures.
Table 19.28.150.A. Setback Requirements.
Minimum Setback Required From (feet) Septic Tank Disposal Field Seepage Pit
Non-Public Water Supply Well' 88 1008 1002 1502
Public Water Supply Well' 100 1502 200
Buildings or Structures' 5 8 8
Property line, including Street Right of Way 5 5 8
Line
Streams and other flowing bodies of waters 100 100 150
Drainage Course 50 50 50
Lakes, ponds, and other surface water 200 200 200
bodies10
Large Trees' 10 - 10
Seepage pits 5 5 12
Disposal field 5 40 5
Onsite domestic water lines (building 5 5 5
service line)
Public Domestic Water Lines 25 25 25
Distribution Box n/a 5 5
Ground surface on sloping ground n/a 15 15
Groundwater 5 5' 10
Notes:
1. Drainage piping will clear domestic water supply wells by not less than
50 feet. This distance will be permitted to be reduced to not less than 25
feet where the drainage piping is constructed of materials approved for use
within a building. If the dispersal system does not exceed 10 feet in depth,
then the horizontal sanitary setback will be 150 feet. If the dispersal system
exceeds 10 feet in depth, then the horizontal sanitary setback will be 200
feet. If the dispersal system exceeds 20 feet in depth, then the horizontal
sanitary setback will be 600 feet.
Ordinance No. 911 - Page 19 of 49
2. For any system discharging 5,000 gallons per day (GPD), or more, the
required setback will be increased to 200 feet.
3. Includes porches and steps whether covered or uncovered, breezeways,
roofed porte cocheres, roofed patios, carports, covered walls, covered
driveway, and similar structures or appurtenances.
4. Any tree with a trunk diameter of one foot or more within 5 feet of the
system that will not be removed during construction.
5.The highest known level to which groundwater is known to have occurred
rather than the level at the time when testing occurred.
6. Plus 2 feet for each additional foot or depth in excess of 1 foot below the
bottom of the drain line.
7. For any system utilizing advanced treatment, this minimum separation
may be reduced to 2 feet with approval under the Advanced Protection
Management Program (APMP) (refer to Chapter 12: Tier 3 -Advanced
Protection Management Program for Impaired Areas for more information
regarding the APMP) and the Regional Water Quality Control Board
(RWQCB).
8. Unless regulatory or legitimate data requirements necessitate that
monitoring wells be located closer.
9.Where the edge of the water body is the natural or levied bank for creeks
and rivers, or may be less where site conditions prevent mitigation of
wastewater to the water body.
10. Where the edge of the water body is the high water mark for lakes and
reservoirs and the mean high tide line for tidally influenced water bodies.
B. On sites with natural slopes of 25% or greater, the siting and design of the
leaching system shall be performed in accordance with recommendations
prepared by a licensed professional geotechnical engineer.
C. Criteria specified in Table 19.28.150.A, above must be met within the area
of the proposed system and within the 100% expansion area for the
proposed system. Depth of earth cover required over the dispersal field is
twelve (12") inches. When the dispersal field cannot be installed twelve
inches below the ground surface, and meet the above separation
requirements, then a supplemental treatment system will be required.
D. OWTS located near public water systems shall be subject to increased
setback requirements, such as OWTS located with 1200 feet of a surface
water intake.
E. Density and minimum lot size requirements. All new development requires
a minimum lot size of one-half acre (21,780 square feet), average gross,
per dwelling unit, including accessory structures, is required for all new
Ordinance No. 911 - Page 20 of 49
developments, which do not have access to a public sewer as required
under 19.28.040 of this chapter. The public street area adjacent to the net
lot area may count towards the minimum one-half acre gross lot size for
OWTS.
For new development for industrial or commercial properties, the
wastewater flow for each one-half acre of land may not exceed that from a
single dwelling unit. When determining compliance with this criterion, a
flow rate of 300 gallons per day will be considered equivalent to a single
family dwelling unit. This flow rate shall be prorated for commercial or
industrial developments with lots smaller than one-half acre, or the
equivalent of 20 fixture units.
F. Minimum Lot Size Exemptions.
1. The minimum lot size requirements do not apply to existing
properties with OWTS which were installed prior to the effective
date of this chapter.
2. New development occurring upon single family residences with
existing septic systems that will accommodate additional
wastewater flows, caused by additional installations such as rooms,
bathrooms or accessory structures. A septic certification may be
required to verify the septic tank and disposal field capacity to
accept additional wastewater flows.
3. Tracts, parcels, and/or commercial/industrial developments which
received land use approval from the City of Rancho Cucamonga
prior to August 21, 2017, are exempt from the minimum lot size
requirements and shall not be less than one-half acre per this
chapter for the use of septic tank subsurface disposal systems.
4. New lots, which are smaller than one-half acre, may be formed by
combining through a lot merger two or more existing lots which have
received land use approval prior to the effective date of the LAMP.
Individually, these lots would be eligible for an exemption from the
minimum lot size requirement. Developments on combined lots
may also qualify for an exemption provided that the total number of
units proposed for the new parcel is equal to, or less than the total
number of units proposed for the existing parcel and/or when an
alternative treatment system is utilized. When requesting to use an
alternative treatment system, each system will be reviewed on a
case-by-case basis, and will require the approval of Building and
Safety Services and the Santa Ana Regional Water Quality Control
Board.
19.28.160 Groundwater and Percolation Testing Requirements.
A. Groundwater Testing Procedures.
Ordinance No. 911 - Page 21 of 49
1. Test borings in the area of an OWTS shall extend to a minimum of
15 feet unless refusal is reached. Deeper depths may be required
depending on site-specific conditions as determined by the City of
Rancho Cucamonga Building and Safety Services or the project
qualified professional. Site-specific conditions may include, but not
be limited to; the proposed depth of the system, local geology, soil
types encountered, elevation and terrain,features on site, evidence
and/or knowledge of historic ground water levels in the area, and
the anticipated fluctuation of the groundwater table in times of
normal to above normal annual rainfall.
2. Test borings in the area of a vertical seepage pit or horizontal
seepage pit system shall extend to at least 10 feet deeper than the
bottom of the proposed pit(s).
3. Since groundwater does not always immediately flow into a test
boring, the City of Rancho Cucamonga Building and Safety
Services requires a minimum of 72 hours pass before an accurate
groundwater measurement is taken. The qualified professional
and/or the property owner maintain full responsibility for protecting
the public from any hazards related to the test borings. It is
recommended that all test borings that encounter groundwater be
converted to observation wells so the groundwater conditions can
be monitored over time.
4. If the qualified professional does not wish to complete the test
borings as observation wells, they can cover the test boring, place
safeguards around the borings to prevent unauthorized access and
make an appointment for the City of Rancho Cucamonga Building
and Safety Services staff to observe the boring at least 72-hours
after the boring has been completed.
5. During periods of below normal average rainfall, or after periods of
drought where there has not yet been sufficient ground water
recharge, the absence of groundwater in test borings in areas
where groundwater is suspect may not mean that approval to issue
a septic tank permit can be granted. It may be necessary for the
City of Rancho Cucamonga Building and Safety Services and the
qualified professional to monitor the test borings for a sufficient
period of time to determine where groundwater will rise to during
normal to above normal rainfall.
B. Percolation Testing Procedure.
All percolation testing for dispersal systems except vertical seepage pits in
the City of Rancho Cucamonga shall be conducted through the use of the
following procedures. The test shall be performed by or under the direct
supervision of a California registered professional engineer or geologist.
Any deviation shall be authorized only after receiving written approval by
the City of Rancho Cucamonga Building and Safety Services. Percolation
testing shall be required for all new OWTS for non-residential development
Ordinance No. 911 - Page 22 of 49
and for residential development comprising more than one dwelling unit,
where a percolation report has not previously been completed. A one-lot
custom single family home may use the city's currently adopted California
Plumbing Code, Appendix H — Private Sewage Disposal Systems, Section
H 3.0 - Area of Disposal Fields and Seepage Pits, and the included Table
H 2.1(2) — Design Criteria of Five Typical Soils for the design of the
seepage pit or the leech field.
1. Test Holes. A minimum of four test holes is required when
percolation rates are less than 60 minutes per inch (mpi). A
minimum of six test holes is required when the average percolation
rate is more than 60 mpi. Additional test holes may be necessary
on a site specific basis for reasons that include, but are not limited
to the following: (i) Unacceptable or failed tests; (ii) Areas of the
disposal field requiring defined limits for exclusion; (iii) The disposal
system is located out of a concentrated area; and (iv) Soil
conditions are variable or inconsistent. All test holes shall be
representative of the dispersal system installation depth. If the
proposed development site has any of the following characteristics,
test holes must be extended below the proposed dispersal system
installation depth: (i) Shallow or consolidated rock or impervious soil
layers; (ii) slopes exceeding twenty-five (25%) percent; or (iii) other
factors as might be determined by sound geotechnical engineering
practices.
2. There shall be a minimum of ten (10) feet of soil above any
imperious formation such as rock, clay, adobe, and/or water table.
Fractured rock and consolidated granites will not be considered as
soil. Deep testing may be required to ensure uniform conditions
exist below the disposal field.
3. Depending upon the scope of grading for a project, the Planning
Department may require a conceptual grading plan and Building
and Safety Services may require a grading plan. If a grading plan is
required it should be included with the percolation report submittal.
A grading plan helps Building and Safety Services ensure testing
was done at the correct depths. Where grading is expected, include
the original and finished elevations in the grading plan. For details
on how to complete a grading plan contact the Building and Safety
Services Department.
4. Percolation testing shall be conducted by, and all accompanying
reports prepared by a Qualified Professional.
5. Prior to reviewing a percolation test, Building and Safety Service
may require a site evaluation during percolation testing to ensure
proper system design, and evaluate site location to ensure that the
system will be in compliance. For soil to be considered uniform, test
results must fall with twenty-five (25%) percent of the mean
percolation rate. Determining the number of percolation tests
required will be based on soil conditions and project type.
Ordinance No. 911 - Page 23 of 49
6. For areas which are primarily Sandy Loam or Sandy Clay, a field
design of 60 square feet per 100 gallons.
7. For areas which are primarily Clay wither considerable sand or
gravel, a field design of 90 square feet per 100 gallons.
8. Percolation rates in excess of 120 minutes per inch shall be
deemed conclusive evidence that the soil is impermeable is not
suitable for an OWTS.
C. Percolation Testing Reports.All testing data and required result information
shall be submitted to City of Rancho Cucamonga Building and Safety
Services on forms approved by the city. A minimum of three copies is
required. All reports shall be signed with an original signature and seal by
the consultant who either performed or supervised the testing. All
percolation testing is to be performed by a licensed civil engineer or
geologist registered in the State of California.
19.28.170 Septic Tank Requirements.
A. All conventional OWTS require the use of a septic tank to allow for the
removal of solids in the wastewater prior to being discharged to the
dispersal field. Alternative OWTS also require a septic tank unless a
settling chamber is a component of the treatment unit.
B. Septic Tank Requirements:
1. Septic tanks must be certified by the International Association of
Plumbing and Mechanical Officials (IAPMO).
2. The tank shall be watertight and possess two chambers.
3. Septic tanks shall be certified by the manufacturer to allow for burial
without being water filled to allow for routine maintenance or to be
used as a holding tank as needed.
4. Septic tanks shall be installed per the manufacturer's instructions.
5. The bottom of the excavation for the tank shall extend into native or
compacted soils to eliminate potential settling issues.
6. Septic tank location must take into account maintenance and
pumping requirements including vehicle access; and distance and
elevation lift to pumper truck..
7. All tanks must have a capped tee or a 90 degree elbow fitting on
the inlet to prevent gas exchange between the tank and the house
plumbing. Inlet tees must extend at least 14 inches below the liquid
level.
Ordinance No. 911 - Page 24 of 49
B. Outlet tees must be uncapped and must extend at least 12 inches
below the liquid level.
9. The outlet elevation shall be between 2 and 6 inches lower than the
inlet elevation to ensure proper fall without a significant loss of
volume.
10. Fall between the outlet of the septic tank and the dispersal field shall
be continuous with a minimum fall that that ensures the outlet pipe
is 4 inches higher than the top of the seepage pit system or 4 inches
above the top of the leach rock or other components used in the
dispersal system on a level system, or a distribution box if multiple
seepage pits or leach lines are constructed.
11. Septic tanks with greater than 6 inches of cover must have risers to
within 6 inches of finished grade. Risers and lids that are at or above
grade must be watertight and lockable or require tools to be
opened.
12. Septic tank risers must have a current IAPMO certification prior to
use. Concrete risers and lids must be constructed of Type V
concrete or be protected from corrosion from sewer gases. The
interior diameter of the riser shall be a minimum of eighteen (18)
inches.
13. Effluent filters must be IAPMO approved if they are to be installed
as part of the outlet tee.
14. Septic tanks installed in areas of vehicular traffic must be certified
to withstand the proposed loads or have an engineered traffic slab
installed to accommodate the proposed loads.
15. Minimum tank size is 1000 gallons for residential and 750 gallons
for non-residential structures.
16. Septic tanks shall be sized according to anticipated wastewater
flows from the structure(s).The following standard sizes shall apply:
(i) 1-3 bedroom single family dwelling (0-450 GPD) 1000 gallons;
(ii) 4 bedroom single family dwelling (450-600 GPD) 1200 gallons;
(iii) 5-6 bedroom single family dwelling (601-900 GPD) 1500
gallons; and (iv) Flows greater than 900 GPD must utilize the
following formula to determine minimum tank sizing: 1125 gallons+
(.75)(Flow in GPD).
17. The permitted plan set shall contain a note requiring the septic tank
to be filled with water, without leakage, at the time of the first
inspection.
19.28.180 Leach Line System Requirements.
Ordinance No. 911 - Page 25 of 49
A. Leach line systems are limited to soils with percolation rates of 120 minutes
per inch or less. Percolation rates in excess of 120 minutes per inch are
unsuitable for the installation of an OWTS dispersal system.
1. At least four percolation test holes at each leach field location
should be provided to represent soil types at the depth of the
proposed leach lines. At least one deep boring should extend to a
depth of at least 15 feet or to impermeable material but in no case
shall there be less than 5 foot of unsaturated, permeable soil below
the bottom of the leach line trench. For areas of suspected high
groundwater, deep borings are recommended to be 20'-25' to help
determine gradients during varying rainfall periods.
2. Backhoe excavations may be required to demonstrate uniformity of
soil throughout the leach field area(s). Leach line dispersal systems
are limited to slopes of 25 percent (4:1) or less.
B. Soil Cover Requirements. The maximum soil cover allowed over the top of
the infiltrative surface is 48 inches, measured from the top of the leach rock
chamber/etc. to the ground surface. The minimum cover required over the
top of the infiltrative surface is 12 inches. Soil cover requirements must also
conform to those allowed by the manufacturer of any gravel-less/chamber
design.
C. Leach Line Dimensions. Leach lines are to be installed according to the
qualified professional's specifications for location, length, width, and depth.
Leach lines are to be spaced at least 10 feet apart, measured center to
center. Leach lines shall be installed with a width of no less than 18 inches
and no more than 36 inches. Regardless of trench width or materials used,
dispersal systems using leach lines shall be designed using not more than
1.5 square feet of infiltrative area per liner foot of trench as the infiltrative
surface. No reduction in sizing is allowed for the use of chambers. The
minimum length of leach trench for a new OWTS using leach lines as the
dispersal system shall be 200 feet regardless of the projected wastewater
flows. A 100% reserve area shall be required for all leach line systems.
Properties that previously were required to maintain areas of 200% or
300% reserve shall now have a 100% reserve area requirement in place of
the previous requirement.
D. Materials and Construction Considerations. Leach lines shall not be placed
under impermeable surfaces. Leach lines that are later covered by
impermeable surfaces may not be considered as viable for purposes of
determining primary and reserve area requirements. All piping and
materials used in leach line systems including gravel-less/chamber
systems must have IAPMO approval and must be approved by City of
Rancho Cucamonga Building and Safety Services prior to installation.
Leach lines that utilize gravel shall be filled with clean, washed leach line
rock to a point at least 4 inches above the top of a 4 inch perforated pipe
and shall have a minimum of 12 inches of gravel below the pipe. The rock
shall be graded at 1 to 1.5 inches in size and shall be covered with straw,
untreated building paper or a geotextile fabric prior to backfill to prevent the
Ordinance No. 911 - Page 26 of 49
infiltration of soil into the rock. Where multiple leach lines are proposed on
sloping ground, a distribution box must be used to connect the leach lines.
Leach line trenches shall be installed with the trench bottom and materials
used being level to within 2 inches per 100 feet.
E. Leach Lines on Steep Slopes. The following requirements must be met for
the installation of leach line trenches on slopes exceeding 25 percent (4:1)
without necessitating the grading of terraces.
1. The maximum slope allowed for leach line trenches is 40 percent
(2-1/2:1 slope).
2. All leach lines on steep slopes shall be installed in 5 foot deep
trenches with 12 inches of leach rock below the leach pipe or with
approved chambers or other gravel-less system.
3. The design of disposal systems on steep slopes requires the
experience and expertise to address conditions relative to soil,
slope stability, and subsurface conditions which require
professional judgment and technical knowledge. Designs for steep
slope systems will only be approved when submitted by a qualified
professional licensed in the State of California.
4. Testing must provide data representative of the entire disposal area
and demonstrate that conditions are uniform below the entire
disposal area. The minimum testing required is: (i) Six percolation
tests at a depth equal to the proposed trench depth; (ii) Two
percolation tests five feet below the proposed trench depth; (iii)
Percolation testing must show rates of 120 minutes per inch or less;
and (iv) At least two soil profile borings demonstrating uniform
conditions throughout the disposal area to a depth of 10 feet below
the proposed trench depth.
5. Design reports must include the following: (i) Cross section(s)
hillside soil profile(s); (ii) Detailed boring logs of all test holes and
borings; (iii) Scaled layouts and profiled designs based on accurate
topography; (iv) Any grading proposed on the site in the disposal
area; (v) A slope stability report or statement from a qualified
professional; (vi) Any grading, proposed to create a stable work
area for trench installation, may be subject to review for conflict with
Building and Safety Services Department.
F. Leach Line System Length.
Table 19.28.180. Leach Line System Length Requirements.
Ordinance No. 911 - Page 27 of 49
LEACH LINE TRENCH LENGTH (feet) BASED ON PERCOLATION TEST
RATE
Perc
Rate Number of Bedrooms Rate Perc Number of Bedrooms
MPI 1 2 3 4 5 6 MPI 1 2 3 4 5 6
1 200 200 240 270 280 300 31 280 350 420 480 535 595
2 200 200 240 270 280 300 32 280 355 430 480 535 595
3 200 200 240 270 280 300 33 290 360 430 490 545 605
4 200 220 260 290 300 310 34 290 360 440 490 545 605
5 200 240 290 320 320 340 35 290 365 440 500 555 615
6 200 250 300 340 350 360 36 300 370 440 500 555 615
7 210 260 310 350 370 380 37 300 370 450 500 555 615
8 210 265 320 360 390 400 38 300 375 450 510 565 625
9 220 270 320 360 400 410 39 300 380 460 510 565 625
10 220 275 330 370 410 420 40 300 380 460 520 575 635
11 220 280 340 380 420 430 41 310 385 460 520 575 635
i
12 230 285 340 380 430 440 42 310 390 470 530 585 645
13 230 290 350 390 430 450 43 310 390 470 530 585 645
14 235 295 350 400 440 460 44 310 395 480 540 595 655
15 240 300 360 400 450 470 45 320 400 480 540 595 655
16 240 300 360 410 450 490 46 320 400 480 540 595 655
17 240 305 370 410 460 500 47 320 405 490 550 605 665
18 250 310 370 420 460 510 48 330 410 490 550 605 665
19 250 310 380 420 470 520 49 330 410 500 560 615 675
20 250 315 380 430 470 520 50 330 415 500 560 615 675
21 260 320 380 430 480 530 51 340 420 500 560 615 675
22 260 320 390 440 480 530 52 340 420 510 570 625 685
Ordinance No. 911 - Page 28 of 49
LEACH LINE TRENCH LENGTH (feet) BASED ON PERCOLATION TEST
RATE
Perc Perc
Rate Number of Bedrooms Rate Number of Bedrooms
MPI 1 2 3 4 5 6 MPI 1 2 3 4 5 6
23 260 325 390 440 490 550 53 340 425 510 580 635 695
24 260 330 400 450 500 560 54 340 430 520 580 635 695
25 260 330 400 450 500 560 55 340 430 520 580 635 695
26 270 335 400 450 510 570 56 350 435 520 590 645 705
27 270 340 410 460 515 575 57 350 440 530 590 645 705
28 270 340 410 460 515 575 58 350 440 530 600 655 715
29 270 345 420 470 525 585 59 350 445 540 600 655 715
30 280 350 420 470 525 585 60 360 450 540 610 665 725
LEACH LINE TRENCH LENGTH BASED ON PERCOLATION TEST RATE
Perc Number of Bedrooms Perc Number of Bedrooms
Rate Rate
MPI 1 2 3 4 5 6 MPI 1 2 3 4 5 6
61 370 460 550 620 690 740 91 680 770 860 930 980 1020
62 380 470 560 630 680 720 92 695 785 875 945 995 1035
63 390 480 570 640 690 730 93 710 800 890 960 1010 1050
64 400 490 580 650 700 740 94 725 815 905 975 1025 1065
65 420 500 580 660 710 750 95 740 830 920 990 1040 1080
66 420 510 600 670 720 760 96 755 845 935 1005 1055 1095
67 430 520 610 680 730 770 97 770 860 950 1020 1070 1110
68 440 530 620 690 740 780 98 785 875 965 1035 1085 1125
69 450 540 630 700 750 790 99 800 890 980 1050 1100 1140
70 460 550 640 710 760 800 100 815 905 995 1065 1115 1155
Ordinance No. 911 - Page 29 of 49
LEACH LINE TRENCH LENGTH BASED ON PERCOLATION TEST RATE
Perc Rate Number of Bedrooms Perc Rate Number of Bedrooms
MPI 1 2 3 4 5 6 MPI 1 2 3 4 5 6
71 470 560 650 720 770 810 101 830 920 1010 1080 1130 1170
72 480 570 660 730 780 820 102 845 935 1025 1095 1145 1185
73 490 580 670 740 790 830 103 860 950 1040 1110 1160 1200
74 500 590 680 750 800 840 104 875 965 1055 1125 1175 1215
75 510 600 690 760 810 850 105 890 980 1070 1140 1190 1230
76 520 610 700 770 820 860 106 905 995 1085 1155 1205 1245
77 530 620 710 780 830 870 107 920 1010 1100 1170 1220 1260
78 540 630 720 790 840 880 108 935 1025 1115 1185 1230 1270
79 550 640 730 800 850 890 109 950 1040 1130 1200 1250 1290
80 560 650 740 810 860 900 110 965 1055 1145 1215 1265 1305
81 570 660 750 820 870 910 111 980 1070 1160 1230 1280 1320
82 580 670 760 830 880 920 112 995 1085 1175 1245 1295 1335
83 590 680 770 840 890 930 113 1010 1100 1190 1260 1310 1350
84 600 690 780 850 900 940 114 1025 1115 1205 1275 1325 1365
85 610 700 790 860 910 950 115 1040 1130 1220 1290 1340 1380
86 620 710 800 870 920 960 116 1055 1145 1235 1305 1355 1395
87 630 720 810 880 930 970 117 1070 1160 1250 1320 1370 1410
88 640 730 820 890 940 980 118 1085 1175 1265 1335 1385 1425
89 650 740 830 900 950 990 119 1100 1190 1280 1350 1390 1440
90 665 755 845 915 965 1005 120 1120 1210 1300 1370 1420 1460
Note: MPI means minutes per inch. Conversion Factor example. (1 inch of drop/ # Perc
Rate) x 60 minutes per hour = 6 inches/hour.
19.28.190 Vertical Seepage Pit System Requirements.
A. Permitted Locations.
Ordinance No. 911 - Page 30 of 49
1. Any lot previously approved for the use of a vertical seepage pit
must meet all current requirements found in this section to be
considered for development based on the use of a vertical seepage
pit. A new custom single family house may use the sizing criteria for
existing lots.
2. New lots containing two or more OWTS units, upon the
recommendation and design by a qualified professional soils
engineer.
B. Percolation Test Procedures for Vertical Seepage Pit Systems. All vertical
seepage pits for new construction, or for 2 or more lots, will require
percolation testing by a qualified professional certified to perform
percolation tests in City of Rancho Cucamonga. A waiver of testing can be
considered where adequate information exists as to soil types, depth and
permeability. Percolation testing for vertical seepage pits shall be
completed per the following guidelines:
1. A 12 to 48 inch diameter test hole shall be excavated to a depth of
at least 10 feet deeper than the proposed installation depth.
2. A minimum 10 foot separation between the bottom of the vertical
seepage pit and the anticipated high groundwater level is required.
3. Boring logs shall be recorded and included with all test reports
indicating soil strata depths and types and visual classification
according to the unified soil classification system along with any
groundwater encountered.
4. The overdrill must be checked for the presence of groundwater a
minimum of 24 hours after the completion of the test boring to allow
time for groundwater to stabilize in the hole.
5. After the groundwater reading is recorded, the test hole shall be
backfilled to a depth 10 feet above the bottom of the test hole or the
groundwater level whichever is shallower.
6. The pit shall be filled with water to the cap depth and a continuous
pre-soak shall be maintained at the proposed cap level for a
minimum 8-hour period. In highly permeable soils when cap levels
cannot be maintained during pre-soak, the test shall be conducted
at a depth no higher than the pre-soak level which was attained.
Document the pre-soak attempt with gallons of water used. In no
case shall less than 5,000 gallons of water be used within a 1 hour
period in the attempted pre-soak when the cap level cannot be
maintained. The depth of the test shall be noted on the boring log
and in no case shall the sidewall of permeable soil below the cap
level be less than ten foot.
7. Upon completion of the pre-soak period, fill the pit to cap level and
determine uniformity of soil by measuring the falling head. Distance
Ordinance No. 911 - Page 31 of 49
to the water level shall be measured at 15 minute intervals, or more
frequently if needed, until the drop stops or the pit empties. A graph
of the drop in water level shall be attached to all proposals
submitted by the qualified professional. If non-uniform rates persist,
the soil will not be considered uniform and the tests discontinued as
they will not be approved by City of Rancho Cucamonga Building
and Safety Services.
8. If the procedure in Item no. 4 demonstrates uniform soil, proceed
with a two-hour static head or falling head capacity test: (i) Static
Head — the pit shall be filled with water to the cap depth and the
water column shall be maintained at that level for two hours. The
amount of water added to maintain this level must be documented.
The 24-hour capacity is determined by multiplying by 12.
Adjustment to a four foot diameter pit is made if a lesser size test
hole is used; (ii) Falling Head — the pit shall be filled with water to
the cap depth and the column of water shall be allowed to drop for
a two hour period.The distance dropped shall be measured and the
amount of water absorbed determined. This amount is multiplied by
12 to determine the 24-hour capacity. Adjustment to a four foot
diameter pit is made if a lesser size test hole is used.
9. The minimum capacity for a new OWTS using vertical seepage pits
as the dispersal system shall be 5 times the volume of the required
septic tank or 5000 gallons per day whichever is greater. All
individual vertical seepage pit shall have a minimum capacity of
1,667 gallons per day.
10.1 Each pit must meet these minimum criteria to be acceptable. The
qualified professional may include safety factors as he feels the
situation warrants.
11. It shall be the responsibility of the qualified professional to maintain
all test holes or pits in a safe manner prior to backfill or capping to
prevent a hazard or accident.
C. Dimensions and Construction Requirements.
1. Vertical seepage pits shall be installed according to the qualified
profession's specifications for location, depth, and cap depth.
2. The pit excavation shall be five (5), six (6) or seven (7) feet in
diameter. Pit excavations greater than 7-feet in diameter require
prior approval by the Building Official.
3. The sidewall depth below the cap shall not be less than 17 feet.
4. The minimum depth to the top of the infiltrative surface allowed is 2
feet. This depth is also known as the cap depth. There is no
maximum cap depth but documentation must be provided to justify
any cap depth greater than 5 feet.
Ordinance No. 911 - Page 32 of 49
5. The maximum slope allowed for the use of vertical seepage pits is
40 percent (2-1/2:1 slope). Slopes that exceed 25% (4:1) will
require additional engineering and design detail as required to
address the risk of effluent surfacing on the slope recognizable as
sewage as well as slope stability issues. Slopes that exceed 25%
(4:1) will, in most cases, require a terrace design or grading to allow
for drilling access. Any grading shall be in accordance with any
permit requirements for brushing, clearing, and grading from any
other agency.
6. All pits must be filled with clean washed leach line rock to the cap
depth. The rock shall be graded at 1 to 1.5 inches in size and shall
be covered with straw, untreated building paper or a geotextile
fabric prior to backfill to prevent the infiltration of soil into the rock.
7. A 4 inch Schedule 40 pipe shall be installed from the ground surface
to the bottom of each seepage pit for clean-out, pumping and
verification of the total pit depth. The pipe shall have perforations
from the cap depth to the bottom of the pit and be of solid
construction from the cap depth to the ground surface. A screw fit
cap must be placed on top of the riser to allow access.
8. Where more than one vertical seepage pit is proposed for the
primary or reserve system, a distribution box must be used to
connect the pits. Chaining or lining the seepage pits together such
that the overflow from an upstream pit flows to a downstream pit
shall not be permitted.
i
D. Design Criteria for Replacement of Existing Private Sewage Disposal
Systems.
Table 19.28.190.D Design Criteria for Replacement of Existing Private Sewage Disposal
Systems.
Septic 3 Ft A.P.* @ 5 Ft A.P.' @ 7 Ft A.P.* @
Disposal Size of Seepage Pit
Tank Field 12" 24" 36"
Capacity Required
(Gallons) Leach Area Width x Width x Width x (Diameter x Depth)
Required Length Length Length
(See notes: 3, 4 & 5)
Field Design at 60 Square Feet/ 100 gallons Pit design at 60 Square
(See notes: 1, 2, 3, & 4) Feet
/ 100 aallons
1,000 600 (2) 3' x 100' (2) 5' x 55' Tx 86' 5' x39' 6' x32' 7' x28'
(1) 3' x100'
1,200 720 (2) 5' x 66' (2) Tx 52' 5' x46' 6' x38' 7' x 33'
& (2) 3' x70'
Ordinance No. 911 - Page 33 of 49
1,500 900 (3) 3' x 100' (2) 5' x 82' (2) Tx 65' 5' x 58' 6' x 48' Tx 41'
Field Design at 90 Square Feet/ 100 gallons Pit design at 90 Square
Feet
1,000 900 (3) 3' x 100' (2) 5' x 90' (2) Tx 64' 5' x58' 6' x48' 7' x 41'
1,200 1,080 (4) 3' x 90' (3) 5' x 72' (2) 7' x 78' 5' x69' 6' x58' 7' x 50'
1,500 1,350 (5) 3' x 90' (3) 5' x 90' (2) Tx 97' 5' x86' 6' x72' 7' x 62'
Notes: `Absorption Perimeter
1. Other variations may be allowed to width and depth so as to
achieve the required leach area.
2. Trenches shall not have less than 150 sq. ft of trench bottom
area or be longer than 100 feet.
3. All deviations from this handout will require a percolation
test with a designed septic system by a licensed Civil Engineer.
4. Depth of the seepage pit shall be measured from the bottom
of the pit to the invert of the distribution pipe.
5. Multiple seepage pits may be used. If this is the case, the
required depth from the table above can be divided equally among
the numbers of seepage pits. In no cases the depth of seepage pits
can be less than the "minimum depth" map attached.
E. Design Criteria for New Private Sewage Disposal Systems.
1. Five-Foot Diameter Pits:
SEEPAGE PIT DEPTH (feet) BASED ON PERCOLATION TEST RATE
Perc
Rate Number of Bedrooms Rate Perc Number of Bedrooms
MPI 1 2 3 4 5 6 MPI 1 2 3 4 5 6
1 17 17 17 17 18 19 31 18 22 27 31 34 38
2 17 17 17 17 18 19 32 18 23 27 31 34 38
3 17 17 17 17 18 19 33 18 23 27 31 35 39
4 17 17 17 18 19 20 34 18 23 28 31 35 39
5 17 17 18 20 20 22 35 18 23 28 32 35 39
6 17 17 19 22 22 23 36 19 24 28 32 35 39
7 17 17 20 22 24 24 37 19 24 29 32 35 39
8 17 17 20 23 25 25 38 19 24 29 32 36 40
9 17 17 20 23 25 26 39 19 24 29 32 36 40
10 17 18 21 24 26 27 40 19 24 29 33 37 40
Ordinance No. 911 - Page 34 of 49
SEEPAGE PIT DEPTH (feet) BASED ON PERCOLATION TEST RATE
Perc
Rate Number of Bedrooms Rate Perc Number of Bedrooms
MPI 1 2 3 4 5 6 MPI 1 2 1 3 4 5 6
11 17 18 22 24 27 27 41 20 25 29 33 37 40
12 17 18 22 24 27 28 42 20 25 30 34 37 41
13 17 18 22 25 27 29 43 20 25 30 34 37 41
14 17 19 22 25 28 29 44 20 25 31 34 38 42
15 17 19 23 25 29 30 45 20 25 31 34 38 42
16 17 19 23 26 29 31 46 20 25 31 34 38 42
17 17 19 24 26 29 32 47 20 26 31 35 139 42
18 17 20 24 27 29 32 48 21 26 31 35 39 42
19 17 20 24 27 30 33 49 21 26 32 36 39 43
20 17 20 24 27 30 33 50 21 26 32 36 39 43
21 17 20 24 27 31 34 51 22 27 32 36 39 43
22 17 20 25 128 1 31 34 52 22 27 32 36 40 44
23 17 21 25 28 31 35 53 22 27 32 37 40 44
24 17 21 25 29 32 36 54 22 27 33 37 40 44
25 17 21 25 29 32 36 55 22 27 33 37 40 44
26 17 21 25 29 32 36 56 22 28 33 38 41 45
27 17 22 26 29 33 37 57 22 28 34 38 41 45
28 17 22 26 29 33 37 58 22 28 34 38 42 46
29 17 22 27 30 133 37 59 i 22 28 34 138 42 46
30 118 122 127 130 1 33 137 1 1 60 123 129 134 139 142 46
SEEPAGE PIT DEPTH (feet) BASED ON PERCOLATION TEST RATE
Perc
Rate Number of Bedrooms Rate Perc Number of Bedrooms
MPI 1 2 3 4 5 6 MPI 1 2 1 3 1 4 5 6
61 24 29 35 39 44 47 91 43 49 55 59 62 65
62 24 30 36 40 43 46 92 44 50 56 60 63 66
63 25 31 36 41 44 46 93 45 51 57 61 64 67
64 25 31 37 41 45 47 94 46 52 58 62 65 68
65 27 32 37 42 45 48 95 47 53 59 63 66 69
66 27 32 38 43 46 48 96 48 54 60 64 67 70
67 27 33 39 43 46 49 97 49 55 61 65 68 71
68 28 34 39 44 47 50 98 50 56 61 66 69 72
69 29 34 40 45 48 50 99 51 57 62 67 70 73
70 29 35 41 45 48 51 100 52 58 63 68 71 74
71 30 36 4146 49 52 101 53 159 64 69 72 75
72 131 136 42 46 i 50 52 102 54 160 165 70 73 75
Ordinance No. 911 - Page 35 of 49
SEEPAGE PIT DEPTH (feet) BASED ON PERCOLATION TEST RATE
Perc Rate Number of Bedrooms Perc Rate Number of Bedrooms
MPI 1 2 3 4 5 6 MPI 1 2 3 4 5 6
73 31 37 43 47 50 53 103 55 61 66 71 74 76
74 32 38 43 48 51 54 104 56 61 67 72 75 77
75 32 38 44 48 52 54 105 57 62 68 73 76 78
76 33 39 45 49 52 55 106 58 63 69 74 77 79
77 34 39 45 50 53 55 107 59 64 70 75 78 80
78 34 40 46 50 54 56 108 60 65 71 75 78 81
79 35 41 46 51 54 57 109 61 66 72 76 80 82
80 36 41 47 52 55 57 110 61 67 73 77 81 83
81 36 42 48 52 55 58 111 62 68 74 78 82 84
82 37 43 48 53 56 59 112 63 69 75 79 82 85
83 38 43 49 54 57 59 113 64 70 76 80 83 86
84 38 44 50 54 57 60 114 65 71 77 81 84 87
85 39 45 50 55 58 61 115 66 72 78 82 85 88
86 39 45 51 55 59 61 116 67 73 79 83 86 89
87 40 46 52 56 59 62 117 68 74 80 84 87 90
88 41 46 52 57 60 62 118 69 75 81 85 88 91
89 41 47 53 57 61 63 119 70 76 82 86 89 92
90 42 48 54 i 58 61 164 120 171 77 83 87 90 93
I I I
Where: mpi = minutes per inch
Conversion Factor:
Example: (1 inch of drop/X MPI) x 60 minutes per hour= 6 inches/hour
2. Six-Foot Diameter Pits:
SEEPAGE PIT DEPTH (feet) BASED ON PERCOLATION TEST RATE
Perc
Rate Number of Bedrooms Rate Perc Number of Bedrooms
MPI 1 2 3 4 5 6 MPI 1 2 3 4 5 6
1 17 17 17 17 17 17 31 17 19 22 25 28 32
2 17 17 17 17 17 17 32 17 19 23 25 28 32
3 17 17 17 17 17 17 33 17 19 23 26 29 32
4 17 17 17 17 17 17 34 17 19 23 26 29 32
5 17 1 17 17 17 17 18 35 17 19 23 27 29 33
6 117 17 17 18 19 19 36 17 120 23 27 29 33
7 117 1 17 17 19 20 20 37 17 120 124 27 29 33
Ordinance No. 911 - Page 36 of 49
SEEPAGE PIT DEPTH (feet) BASED ON PERCOLATION TEST RATE
Perc
Rate Number of Bedrooms Rate Perc Number of Bedrooms
MPI 1 2 3 4 5 6 MPI 1 2 1 3 4 5 6
8 17 17 17 19 21 21 38 17 20 24 27 30 33
9 17 17 17 19 21 22 39 17 20 24 27 30 33
10 17 17 18 20 22 22 40 17 20 24 28 31 34
11 17 17 18 20 22 23 41 17 20 24 28 31 34
12 17 17 18 20 23 23 42 17 21 25 28 31 34
13 17 17 19 21 23 24 43 17 21 25 28 31 34
14 17 17 19 21 23 24 44 17 21 25 129 32 35
15 17 17 19 21 24 25 45 17 21 25 29 32 35
16 17 17 19 22 24 26 46 17 21 25 29 32 35
17 17 17 20 22 24 27 47 17 21 26 29 32 35
18 17 17 20 22 24 27 48 18 22 26 29 32 35
19 17 17 20 22 25 28 49 18 22 27 30 33 36
20 17 17 20 23 25 28 50 18 22 27 30 33 36
21 17 17 20 23 25 28 51 18 22 27 30 33 36
22 17 17 21 23 25 28 52 18 22 27 30 33 36
23 17 17 21 23 26 29 53 18 23 27 31 34 37
24 17 18 21 24 27 30 54 18 23 28 31 34 37
25 17 18 21 24 27 30 55 18 23 28 31 34 37
26 17 18 21 24 27 30 56 19 23 28 31 34 37
27 17 18 22 24 27 31 57 19 23 28 31 34 37
28 17 18 22 24 27 31 58 19 23 28 32 35 38
29 17 18 22 25 28 31 1 59 19 124 29 32 35 38
30 17 19 22 25 28 131 1 1 60 19 124 129 132 135 138
SEEPAGE PIT DEPTH (feet) BASED ON PERCOLATION TEST RATE
Perc Rate Number of Bedrooms Rate Number of Bedrooms
MPI 1 2 3 4 5 1 6 MPI 1 2 3 4 5 6
61 20 24 29 33 37 39 91 36 41 46 49 52 154
62 20 25 30 33 36 38 92 37 42 46 50 53 55
63 21 25 30 34 37 39 93 38 42 47 51 54 56
64 21 26 31 35 37 39 94 38 43 48 52 54 57
65 22 27 31 35 38 40 95 39 44 49 53 55 57
66 22 27 32 36 38 40 96 40 45 150 53 56 58
67 23 28 32 36 39 41 97 41 46 50 54 57 59
68 23 28 33 37 39 41 98 42 46 51 55 58 60
69 24 29 33 37 40 42 99 42 47 152 156 58 61
Ordinance No. 911 - Page 37 of 49
SEEPAGE PIT DEPTH (feet) BASED ON PERCOLATION TEST RATE
Perc Rate Number of Bedrooms Perc Rate Number of Bedrooms
MPI 1 2 3 4 5 6 MPI 1 2 3 4 5 6
70 24 29 34 38 40 42 100 43 48 53 57 59 61
71 25 30 35 38 41 43 101 44 49 54 57 60 62
72 25 30 35 39 41 44 102 45 50 54 58 61 63
73 26 31 36 39 42 44 103 46 50 55 59 62 64
74 27 31 36 40 42 45 104 46 51 56 60 62 64
75 27 32 37 40 43 45 105 47 52 57 61 63 65
76 28 32 37 41 44 46 106 48 53 58 61 64 66
77 28 33 38 41 44 46 107 49 54 58 162 65 67
78 29 33 38 42 45 47 108 50 54 59 63 65 67
79 29 34 39 42 45 47 109 50 55 60 64 66 68
80 30 35 39 43 46 48 110 51 56 61 64 67 69
81 30 35 40 44 46 48 111 52 57 62 65 68 70
82 31 36 40 44 47 49 112 53 58 62 66 69 71
83 31 36 41 45 47 49 113 54 58 63 67 70 72
84 32 37 41 45 48 50 114 54 59 64 168 70 72
85 32 37 42 46 48 50 115 55 60 65 168 71 73
86 33 38 42 46 49 51 116 56 61 66 169 72 74
87 33 38 43 47 49 51 117 57 62 66 70 73 75
8834 39 44 47 50 52 118 58 62 67 71 74 76
89 35 39 44 48 50 53 119 58 63 68 72 74 76
90 35 40 45 49 51 53 120 59 64 69 173 75 77
3. Seven-Foot Diameter Pits:
SEEPAGE PIT DEPTH (feet) BASED ON PERCOLATION TEST RATE
Perc Rate Number of Bedrooms Perc Rate Number of Bedrooms
MPI 1 2 3 4 5 6 MPI 1 2 3 4 5 6
1 17 17 17 17 17 17 31 17 17 19 22 24 27
2 17 17 17 17 17 17 32 17 17 20 22 24 27
3 17 17 17 17 17 17 33 17 17 20 22 25 28
4 17 17 17 17 17 17 34 17 17 20 22 25 28
5 17 17 17 17 17 17 35 17 17 20 23 25 28
6 17 17 17 17 17 17 36 17 17 20 23 25 28
7 17 17 17 17 17 17 37 117 17 20 23 25 28
8 17 17 17 17 18 18 38 117 17 20 23 26 28
9 17 17 17 17 18 19 39 17 17 21 23 26 28
Ordinance No. 911 - Page 38 of 49
SEEPAGE PIT DEPTH (feet) BASED ON PERCOLATION TEST RATE
Perc
Rate Number of Bedrooms Rate Perc Number of Bedrooms
MPI 1 2 3 4 5 6 MPI 1 2 3 4 5 6
10 17 17 17 17 19 19 40 17 17 21 24 26 29
11 17 17 17 17 19 20 41 17 18 21 24 26 29
12 17 17 17 17 20 20 42 17 18 21 24 27 29
13 17 17 17 18 20 20 43 17 18 21 24 27 29
14 17 17 17 18 20 21 44 17 18 22 25 27 30
15 17 17 17 18 20 21 45 17 18 22 25 27 30
16 17 17 17 19 20 22 46 17 18 22 25 27 30
17 17 17 17 19 21 23 47 17 18 22 25 28 30
18 17 17 17 19 21 23 48 17 19 22 25 28 30
19 17 17 17 19 21 24 49 17 19 23 25 28 31
20 17 17 17 20 21 24 50 17 19 23 25 28 31
21 17 17 17 20 22 24 51 17 19 23 25 28 31
22 17 17 18 20 22 24 52 17 19 23 26 1. 28 31
23 17 17 18 20 22 25 53 17 19 23 26 29 32
24 17 17 18 20 23 25 54 17 20 24 26 29 32
25 17 17 18 20 23 25 55 17 20 24 26 . 29 32
26 17 17 18 20 23 26 56 17 20 24 27 29 32
27 17 17 19 21 23 26 57 17 20 24 27 29 32
28 17 17 19 21 23 26 58 117 20 24 27 30 33
29 17 17 19 21 24 27 59 17 20 25 27 30 33
30 17 17 19 21 24 27 60 17 120 125 128 30 33
SEEPAGE PIT DEPTH (feet) BASED ON PERCOLATION TEST RATE
Perc Rate Number of Bedrooms Rate Number of Bedrooms
MPI 1 2 3 4 5 6 MPI 1 2 3 4 5 6
61 17 121 25 28 31 34 91 31 35 39 42 45 46
62 17 21 25 29 31 33 92 32 36 40 43 45 47
63 18 22 26 29 31 33 93 32 36 40 44 46 48
64 18 22 26 30 32 34 94 33 37 41 44 47 48
65 19 23 26 30 32 34 95 34 38 42 45 47 49
66 19 23 27 30 33 35 96 ME
48 50
67 20 24 28 31 33 35 97 49 51
68 20 24 28 31 34 35 98 49 51
69 20 25 29 32 34 36 99 50 52
70 21 25 29 32 35 36 100 8 51 53
71 21 25 30 33 35 37 101 9 51 53
Ordinance No. 911 - Page 39 of 49
SEEPAGE PIT DEPTH (feet) BASED ON PERCOLATION TEST RATE
Perc
Rate Number of Bedrooms Rate Perc Number of Bedrooms
MPI 1 2 3 4 5 6 MPI 1 2 3 4 5 6
72 22 26 30 33 35 37 102 38 43 47 50 52 54
73 22 26 30 34 36 38 103 39 43 47 51 53 55
74 23 27 31 34 36 38 104 40 44 48 51 53 55
75 23 27 31 35 37 39 105 40 45 49 52 54 56
76 24 28 32 35 37 39 106 41 45 49 53 55 57
77 24 28 32 35 38 40 107 42 46 50 53 56 57
78 25 29 33 36 38 40 108 43 47 51 54 56 58
79 25 29 33 36 39 40 109 43 47 51 55 57 59
80 25 30 34 37 39 41 110 44 48 52 55 58 59
81 26 30 34 37 40 41 111 45 49 53 56 58 60
82 26 30 35 38 40 42 112 45 49 53 57 59 61
83 27 31 35 38 40 42 113 46 50 54 57 60 61
84 27 31 35 39 41 43 114 47 51 55 58 60 62
85 28 32 36 39 41 43 115 47 51 56 59 61 63
86 28 32 36 40 42 44 116 48 52 56 59 62 63
87 29 33 137 40 42 44 117 49 53 57 60 62 64
88 29 33 37 40 43 45 118 49 53 58 61 63 65
89 130 34 38 41 43 45 119 50 54 58 61 63 66
90 130 134 138 42 1 44 46 120 151 155 59 62 65 66
19.28.200 Horizontal Seepage Pit Systems.
The use of the horizontal seepage pit systems is permitted only where adequate
area does not exist for a leach line system. All horizontal seepage pit systems shall
comply with the design and construction requirements provided in this section.
A. Percolation Test Procedures for Horizontal Seepage Pit Systems. All
percolation tests shall be performed in accordance with the test procedures
found in 19.28.160 (Groundwater and Percolation Testing
Requirements). In addition to the requirements of Section 19.28.160,
percolation tests for horizontal seepage pits must also comply with the
following additional requirements:
1. The average percolation rates shall not exceed 30 minutes per inch
in any portion of the horizontal seepage pit. Individual rates
exceeding 30 minutes per inch may be considered with additional
soil testing.
2. At least 4 percolation test holes at each pit location should be
provided to represent soil types within the infiltrative surface area of
Ordinance No. 911 - Page 40 of 49
the seepage pit. This profile should represent the entire sidewall
depth of the pit.
3. At least 1 deep boring should extend to a depth of at least 10 feet
below the bottom of the seepage pit, or to impermeable material. In
no case shall less than 5 feet of unsaturated permeable soil exist
below the bottom of the seepage pit.
4. Backhoe excavations may be required to demonstrate uniformity of
soil throughout the seepage pit. This would be necessary when the
pit is proposed in an area of variable soil conditions.
5. Any percolation tests for horizontal seepage pits, which were
approved based on testing prior to the effective date of this section,
will require additional percolation testing unless the previous testing
meets current requirements.
B. Dimensions and Construction Requirements.
1. Horizontal seepage pits are to be installed according to the qualified
professional's specifications for location, length, width, and depth.
2. Horizontal seepage pits must be spaced 20 feet apart measured
edge to edge.
3. Primary and reserve horizontal seepage pits cannot be combined
in one common pit.
4. The pit excavation must be at least 4 feet in width, but not greater
than 6 feet in width.
5. The top of the infiltrative surface shall be at least 2 feet below the
natural grade but no more than 5 feet. This depth is also known as
the cap depth. Additional soil can be placed over the top of the
installed horizontal seepage pit at the discretion of the qualified
professional.
6. The sidewall depth below the cap shall be at least 6 feet but cannot
exceed 7 feet.
7. The pit excavations may arc or bend under the following conditions:
(i) The maximum deflection cannot exceed a total of 45 degrees in
any direction without increasing the pit length to compensate for
loss of sidewall area; (ii) Bends or arcs totaling greater than 45
degrees may be accepted on a case-by-case basis. A correction
factor will be required, increasing the total length, due to sidewall
loss; and (iii) U-shaped and H-shaped bends will not be accepted.
8. The maximum slope for the use of horizontal seepage pits is 25%
(4:1). Exceptions to this slope limit may be considered up to 50%
(2:1), on a case-by-case basis, where the soil and slope are
Ordinance No. 911 - Page 41 of 49
uniform, extending 100 feet beyond the seepage pit. Additional
testing, and design detail shall be required to address the risk of
effluent surfacing on the slope recognizable as sewage as well as
slope stability issues. Slopes that exceed 25% (4:1) will, in most
cases, require a terrace design. Any grading to create terraces
should be in accordance with any permit requirements for brushing,
clearing, and grading from any other agency.
9. The use of concrete pit liners is allowed. If used, the concrete pit
liners shall meet the testing standards established by the
International Association of Plumbing and Mechanical Officials
(IAPMO).
10. All pits must be filled with clean leach line rock to the cap depth of
the horizontal pit liner. The rock should be graded at 1 to 1.5 inches
in size and shall be covered with straw, untreated building paper or
a geotextile fabric prior to backfill to prevent the infiltration of soil
into the rock.
11. A manifold system constructed of 4 inch loop of Schedule 40
perforated pipe shall be installed in the pit to allow for distribution of
the effluent throughout the entire pit. The manifold shall be placed
1 foot from the sidewall of the horizontal seepage pit and shall run
the length and width of the pit in a rectangular pattern.
12. Where more than one horizontal seepage pit is proposed for the
primary or reserve system, a distribution box must be used to
connect the pits. 1 1
13. A hybrid system combining a horizontal seepage pit for the primary
or reserve design, and leach lines for the other system is allowed.
However, a combination of the two types of systems, used for a
single primary or reserve design, will not be considered.The system
design identified as the most difficult installation shall be installed
as the primary system. This is to be based on access, grading, or
other obstacles to install the system once the house is constructed.
14. The California Occupational Health and Safety Act (COHSA)
requires shoring for excavations exceeding 5 feet when persons will
be working in them. All work done installing horizontal seepage pits
must comply with COHSA for the purpose of construction and
inspection.
C. Horizontal Seepage Pit Sizing Calculations. The calculations for sizing a
horizontal seepage pit are done to provide an equivalent amount of sidewall
area in the seepage pit as found in a standard 3 foot deep leach line trench
using the same percolation rate.
Seepage Pit Length = (31-1-—2wd)/2d
Ordinance No. 911 - Page 42 of 49
Where: 3 = sq. ft. of absorptive sidewall area per lineal foot of 3 foot
deep leach line trench
LL = leach line length as a function of percolation rate
w = seepage pit width
d = seepage pit sidewall depth below cap
19.28.210 Alternative onsite wastewater treatment systems; Use of
alternative systems.
Alternative onsite wastewater treatment systems and sewage holding tanks may
only be used with prior approval of the Director of Building and Safety Services
prior to submittal of plans for permitting purposes. Owners of alternative treatment
systems located within the City must:
A. Maintain an operating permit;
B. Ensure the alternative treatment system is inspected annually; and
C. Submit quarterly water samples during the first year of use.
19.28.220 Alternate onsite wastewater treatment systems siting and
operational requirements; Variances permissible.
A. Property owners may apply to Building and Safety Services to establish
alternative OWTS siting and operational requirements where it is
determined by Building and Safety Services that alternative requirements
will provide equivalent level of environmental protection.
B. Variances will not be granted in the following circumstances:
1. Where the proposed OWTS presents a substantial likelihood of
discharging sewage, impure waters, or any matter or substance
offensive, injurious, or dangerous to health so as to cause any of
the following to occur:
i. Sewage, impure waters, or any matter or substance
offensive, injurious, or dangerous to health to empty, flow,
seep, or drain onto the surface of any land.
ii. Sewage, impure waters, or any matter or substance
offensive, injurious, or dangerous to health to empty, flow,
seep, drain into, or affect any well, spring, stream, river,
lake, or other waters.
iii. Result in any condition which is unsafe, dangerous, or
creates a nuisance.
Ordinance No. 911 - Page 43 of 49
2. Above surface discharge. Variances will not be granted for any
OWTS which utilizes any form of effluent disposal discharging on,
or above, the post installation ground surface; this includes, but is
not limited to sprinklers, exposed drip lines, free-surface wetlands,
and ponds.
3. Sewer availability. Variances will not be granted for any OWTS
where there is a public sewer available. Building and Safety
Services Department may require a "Will or Will Not Serve" letter
Cucamonga Valley Water District with each new or replacement
OWTS proposal to evaluate the proximity and availability of
community systems to the proposed OWTS site. This will ensure
septic systems are only installed in areas where a sewer is
unavailable. The "Will or Will Not Serve" letter must include the
following: (i) Parcel number for the property where the OWTS is
being proposed; (ii) Distance to the nearest available sewer line;
and (iii) Whether or not the sewering entity will provide service to
the parcel. The "Will or Will Not Serve" letter must be completed
and signed by the appropriate official representing the sewering
entity and be filed with the Building and Safety Services Department
prior to submittal of the percolation report/plot plan, or upon request
once the percolation report/plot plan has been submitted.
4. Sewer Requirement. Connection to a public sewer system is
required within established sewer service districts and outside such
districts when required by the RWQCB. Developments must
connect to a sewer system when the nearest property line is within
200 feet of a sewer line. This requirement will be increased by 100
feet for each dwelling unit within the development.
5. Ground Slope. Variances will not be granted for slopes greater than
a 30% incline without a slope stability report approved by a
Qualified Professional. Refer to Natural Ground Slope for more
information regarding natural ground slope requirements.
6. Leaching Areas. As referenced in the current adopted California
Plumbing Code, Appendix H —Private Sewage Disposal Systems
— Section H 301.1 Leaching Chambers that comply with IAPMO
PS 63 and bundled expanded polystyrene synthetic aggregate units
that comply with IAPMO IGC 276 shall be sized using the required
area calculated using Table H 201.1(3) with a 0.70 multiplier.
7. Supplemental Treatment. OWTS utilizing supplemental treatment
require periodic monitoring or inspections. No variances will be
granted for supplemental treatments that are unable to meet this
requirement.
8. Depth to Groundwater. No variance will be granted for OWTS with
a depth from the bottom of the dispersal system to groundwater less
than 5 feet. The exception to this will be for seepage pits which
shall have a separation no less than 10 feet.
Ordinance No. 911 - Page 44 of 49
9. Recreational Vehicle (RV) Holding Tanks. No variances will be
granted for OWTS dedicated to receiving significant amounts of
wastes, which are dumped from RV holding tanks.
10. Class V Injection Wells. United States Environmental Protection
Agency (USEPA) requirements apply to underground injections
control systems for OWTS. Subsurface disposal systems including
leach fields and seepage pits shall comply with USEPA
Underground Injection Control requirements when classified as a
Class V injection well. Subsurface disposal systems with at least
one of the following characteristics are classified as Class V wells:
(i) The system has the capacity to serve 20 or more persons per
day; (ii) The system receives wastewater other than domestic
wastewater such as that generated by manufacturing, chemical
processing, industrial fluid disposal, automotive repair, or recycling;
or (iii) The system receives sewage containing biological agents
(such as wastewater from recreational vehicles or portable toilets).
Disposal systems that are classified as Class V wells must be
registered with USEPA.
19.28.230 Sewer wells; cesspools; seepage pits.
Except those permitted pursuant to a valid OWTS permit issued in conformance
with the requirements of this chapter, all sewer wells, cesspools, seepage pits, and
similar excavations are hereby declared a public nuisance and are prohibited.
19.28.240 Holding tanks.
I �
A. All holding tanks are hereby declared a public nuisance and are prohibited.
Exception to this prohibition may be granted by the Director of Building and
Safety Services:
1. If it is necessary to use a holding tank to abate a nuisance or health
hazard caused by a failing OWTS; or
2. For a publicly-owned nonresidential facility necessary for the public
health, safety or welfare, where installation of an OWTS is not
feasible and a holding tank is determined by the Director of Building
and Safety Services to provide the safest and most acceptable
method of sewage disposal.
B. Where exceptions are granted and holding tank(s) approved, an operating
permit issued by the director will be required,which will provide for approval
of the tank pumper, maintenance schedule, tank/sewage level monitoring,
and reporting requirements.
19.28.250 OWTS failures; Corrective actions required.
A. All OWTS failures resulting in effluent surfacing, wastewater surface
discharge, or wastewater back-up into plumbing fixtures, shall be reported
immediately to Building and Safety Services, upon discovery.
Ordinance No. 911 - Page 45 of 49
B. Building and Safety Services or other designated City departments will
complete an investigation within 24 hours to determine the validity of the
complaint or other notification of a failing OWTS.
C. Any OWTS that is found to be failing shall have a notice of violation issued
to the property owner requiring action to eliminate the immediate health
hazard through pumping of the septic tank by a licensed sewage hauler or
elimination of wastewater flows to the failing OWTS. The notice of violation
will also require a repair to be completed to the OWTS as needed within a
reasonable time frame.
D. The proposed repair shall be evaluated by Building and Safety Services to
ensure it meets the minimum design requirements of this chapter or is in
substantial conformance to the greatest extent practicable.
E. Groundwater separation requirements to the bottom of the dispersal
system and the highest anticipated groundwater level for repairs shall be
as follows: (i) 5 foot for conventional OWTS; (ii) 2 foot for alternative OWTS
with supplemental treatment; and (iii) Less than 2 foot separation cannot
be allowed through this LAMP and will require a waste discharge permit
through the RWQCB.
F. The repair shall be completed under permit and inspection by Building and
Safety Services.
G. Failure to complete the required corrective action within the time frames
given will result in additional enforcement action which may include
condemnation ofIthe structure for immediate health hazards.
19.28.260 Substandard systems.
All OWTS within the City of Rancho Cucamonga that do not meet the minimum
design requirements of this Chapter shall be deemed substandard. Sites with
substandard OWTS shall be prohibited from having future additions or
modifications to the property that would potentially increase wastewater flow to the
OWTS or decrease the amount of usable area available for the OWTS.
19.28.270 Abandoned onsite wastewater treatment systems.
A. All abandoned OWTS shall be disposed of in accordance with this section.
An OWTS Abandonment Permit must be obtained prior to the removal or
disposal of any abandoned OWTS. For the purposes of this section, an
OWTS shall be considered abandoned if it has been out of service for more
than three consecutive months.
B. Every OWTS that has been abandoned or has been discontinued from
further use or to which no waste or waste discharge pipe from a plumbing
fixture is connected must have all remaining sewage removed from, and
disposed of by a qualified waste hauler and transported to a dispersal
facility that operates in compliance with valid permit issued by a Regional
Water Quality Control Board.
Ordinance No. 911 - Page 46 of 49
C. Upon removal of all remaining sewage, the tank top and bottom must be
crushed, backfilled and compacted with material approved by the director
or be removed and disposed of in an approved manner.
D. Completion of the above-described work shall require that the property
owner obtain a septic tank abandonment permit from the director.
19.28.280 Abatement.
To the extent possible, failing OWTS must be brought into compliance with this
Code. In case of any failure, malfunction or breakdown of any OWTS, if not
corrected within a time designated by the Director, the Director may order or cause
corrections to be made and bill the property owner for the costs and may place a
lien on the property for the abatement costs. The Director may also order the
premises to be vacated if no safe manner of abatement is possible.
19.28.290 Notice of violation.
The Director may provide a notice of intent to record a notice of violation to the
owner of property upon which a failing or substandard OWTS exists. Notice will be
provided to the property owner by mail at the address shown on the latest
assessment roll or at any other address of the owner known to the director. The
notice will also be posted on the property. The notice will state that within 15 days
of the date of the notice, ,the property owner may request a meeting with the
Director to present evidence that a violation does not exist.
If, within 15 days of the date of the notice, the property owner does not request a
meeting and the violation has not been corrected, or if, after considering the
evidence presented by the property owner at the meeting, the Director determines
that a code violation in fact exists, the Director may record a notice of violation in
the office of the County Recorder. Upon recording the notice,the Director will notify
the owner of the action. The notice is to inform all parties that no improvements,
including building additions, can be approved while the failing or substandard
OWTS continues in operation.
At the request of any affected property owner and upon full payment of any fees
established by resolution of the city council for recovery of associated enforcement
costs and payment of any fee for the recordation of the notice of violation, the
Director will issue a notice of expungement of violation upon proof to the director
that the noticed violation has been remedied. The notice of expungement may be
recorded by the property owner at his or her expense.
19.28.300 Appeal from denial, revocation or suspension.
A. Any person aggrieved by any decision of the Director with respect to the
issuance or refusal to issue a OWTS permit may, within ten days of the
date of the decision, appeal the decision to the city manager, or his or her
designee, by filing a written notice of appeal with the city manager.
B. The city manager, or his or her designee, shall thereupon fix a time and
place for hearing such appeal within 30 days of the date of said decision.
Ordinance No. 911 - Page 47 of 49
The aggrieved party shall be given notice of the time and place of the
hearing by serving the notice personally or by depositing it in the United
States Post Office in the city, certified mail, addressed to the aggrieved
party at his or her last known address.
C. The city manager, or his or her designee, shall have the authority to
determine all questions raised on such appeal during the hearing. No such
determination shall conflict with any substantive provision of this chapter.
D. Following such hearing, the city manager, or his or her designee, may
reverse, modify, or affirm the decision of the director with respect to the
issuance or refusal to issue a license. The city manager shall render a
decision within a reasonable period of time not to exceed 60 days of the
conclusion of the hearing. The decision of the city manager, or his or her
designee, shall be final.
SECTION 3. The City Council declares that, should any provision, section, paragraph,
sentence, or word of this Ordinance be rendered or declared invalid by any final court action in a
court of competent jurisdiction, or by reason of any preemptive legislation, the remaining
provisions, sections, paragraphs, sentences, and words of this Ordinance shall remain in full force
and effect.
SECTION 4. The City Clerk shall certify as to the adoption of this Ordinance.
I
Ordinance No. 911 - Page 48 of 49
PASSED, APPROVED, AND ADOPTED this 19th day of July 2017.
t ✓,
L. Dennis Michael, Mayor
ATTEST:
ice C. eynolds, City Clerk
STATE OF CALIFORNIA )
COUNTY OF SAN BERNARDINO ) ss
CITY OF RANCHO CUCAMONGA )
I, JANICE C. REYNOLDS, CITY CLERK of the City of Rancho Cucamonga,
California, do hereby certify that the foregoing Ordinance was introduced at a Regular Meeting of
the City Council of the City of Rancho Cucamonga held on the 2111 day of
June 2017, and was passed at a Regular Meeting of the City Council of the City of Rancho
Cucamonga held on the 1911 day of July 2017. 1
AYES: Alexander, Kennedy, Michael, Spagnolo, Williams
NOES: None
ABSENT: None
ABSTAINED: None
Executed this 201h day of July 2017, at Rancho Cucamonga, California.
r
zew
J ce . Reynolds, City Clerk
Ordinance No. 911 - Page 49 of 49