2017-359114 DOC# 2017-0359114
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Aug 08, 2017 04:57 PM
OFFICIAL RECORDS
Ernest J. Dronenburg, Jr.,
SAN DIEGO COUNTY RECORDER
Recording Requested By: FEES: $72.00
PAGES. 20
City Engineer
When Recorded Mail to:
City Clerk
City of Encinitas
505 South Vulcan Avenue
Encinitas CA 92024
SPACE ABOVE FOR RECORDER'S USE
MAINTENANCE AGREEMENT FOR PRIVATE STORMWATER TREATMENT AND
STORMWATER POLLUTION CONTROL AND HYDROMODIFICATION
V- MANAGEMENT FACILITIES BY HOMEOWNER'S ASSOCIATION
APN: 258-111-18� Grading Plan: 13322-G/1
Case No: 15-292 TPM/DR/CDP
THIS AGREEMENT is between the City of Encinitas, a municipal corporation,
hereinafter referred to as the "City", and Land Holdings, LLC., its heirs, successors, and
assigns, collectively hereinafter referred to as "Developer', owner(s) of that certain real
property hereinafter referred to as "Property" that is described in Exhibit "A", which is
attached hereto and made a part hereof. This Agreement is for the periodic
Maintenance of certain private stormwater treatment, pollution control, and
hydromodification management facilities, hereinafter referred to collectively as
"Stormwater Facilities". Stormwater Facilities include but are not limited to Best
Management Practices (BMPs), Integrated Management Practices (IMPs), Low Impact
Development (LID) features, Hydromodification Management Plan (HMP) facilities,
structural stormwater treatment devices, and drainage facilities. The description and
plat of Stormwater Facilities is set forth in Exhibit "B" which is, attached hereto and
made a part hereof. The term Maintenance is defined in Paragraph 1 below.
WHEREAS, this Agreement is required by the City as condition of approval of a
City permit pursuant to City of Encinitas Municipal Code Chapter 20.08 and Chapter
23.24 as well as the City of Encinitas Stormwater Manual; and
WHEREAS, the Stormwater Facilities described in Exhibit "B" benefit said
Property, the developer, and the future owners of the lots/parcels created per Map
Case No. 15-292 TPM/DR/CDP, their heirs, successors, and assigns, collectively
hereinafter referred to as "Owners'; and
WHEREAS, City requires that Developer establish a homeowners association in
conformance with the California Civil Code Sections 1350 through 1376, hereinafter
referred to as "HOX, to be responsible for the Maintenance of Stormwater Facilities
into perpetuity; and
WHEREAS, it is the desire of the City, the responsibility of the Owners, HOA, and
Developer, herein after collectively referred to as "Parties", and to the benefit of the
Public that Maintenance of said Stormwater Facilities occur on a regular and periodic
basis as necessary to preserve the Storm Water Facilities in good-working order by the
Parties in accordance with the minimum Maintenance requirements set forth in Exhibit
"C", which is attached hereto and made a part hereof, and in accordance with the City
of Encinitas Municipal Code, the Encinitas Stormwater Manual, and other related City
policies and requirements; and
WHEREAS, it is responsibility of the Developer and HOA to manage and oversee
Maintenance of Stormwater Facilities and to assign a single point of contact between
the City of Encinitas and HOA or Developer; and
WHEREAS, Developer's responsibility of Maintenance of Stormwater Facilities will
be transferred to HOA after the sale of all lots/parcels, the completion of development,
and the approval of the City; and
WHEREAS, following Developer's completion of the development and acceptance
by the City, the Owners are responsible to continuously have an HOA for purposes of
Maintenance of the Stormwater Facilities; and
WHEREAS, for the purpose of this agreement, Maintenance responsibilities
mentioned on this agreement equally and collectively apply to Owners and the HOA;
WHEREAS, it is requirement of development that this Agreement constitute a
covenant running with the land, binding upon each successive owner of all or any
portion of the Property into perpetuity;
NOW THEREFORE, IT IS HEREBY AGREED FOR VALUABLE
CONSIDERATION AS FOLLOWS:
1. This agreement establishes the Parties' Maintenance requirements for the
Stormwater Facilities. The term "Maintenance' wherever capitalized in this
agreement shall include, but shall not be limited to: inspection for purposes of
identifying operational deficiencies in the Stormwater Facilities, routine upkeep
and repair of the Stormwater Facilities in proper working order as determined by
the City, and preparation and submittal of the annual inspection report to the
City, all as set forth in subparagraph 1.i) through 1.iii). The Parties' requirements
for providing Stormwater Facilities Maintenance as stated in this agreement shall
mean Maintenance managed and paid for by the Parties, and performed by a
qualified contractor hired by the Parties.
i) The Parties shall inspect the Stormwater Facilities after all major storms. In
addition, the Parties shall inspect the Stormwater Facilities at the minimum
frequency specified in Exhibit "C", but not less than twice per year.
ii) The Parties shall provide upkeep and repair to keep the Stormwater Facilities
in good working order and shall repair all deficiencies identified in the Parties'
inspections no later than 30 days following the inspection or prior to the next
anticipated rain event. Interim water quality control measures shall be utilized
to protect damaged or deficient Stormwater Facilities until such time as the
Facilities are repaired. The minimum upkeep and repair frequency shall be
consistent with the Exhibit "C" but not less than once per year. To the
satisfaction of the Director of Engineering Services, the Parties shall ensure
that the Stormwater Facilities are in proper working order for the rainy
season, which starts on October 1.
iii) The Parties shall obtain the City of Encinitas Stormwater Inspection Report
form from the City website or the City of Encinitas Civic Center, complete the
inspection report form, and submit the inspection report to the City of
Encinitas Department of Engineering Services. Prior to the submittal of the
inspection report to the City, the Parties shall perform an inspection of the
Stormwater Facilities, identify deficiencies, and repair and correct all
deficiencies. The inspection report shall be submitted to the City once a year
between August 1 and September 30.
2. The Property is benefited by this Agreement, and it is the purpose of the
signatories hereto that this instrument be recorded to the end and intent that the
obligation hereby created shall be and constitute a covenant running with the
land. Any heirs, executors, administrators, assignees, and/or successors in
interest to all or any portion of the Property, by acceptance of delivery of a deed
and/or conveyance regardless of form, shall be deemed to have consented to
and become expressly bound by these presents, including without limitation, the
right of any person entitled to enforce the terms of this Agreement to institute
legal action as provided in Paragraph 14 hereof, such remedy to be cumulative
and in addition to other remedies provided in this Agreement and to all other
remedies at law or in equity.
3. The Stormwater Facilities shall be constructed by and have Maintenance
performed by the Parties in accordance with the term and conditions of this
agreement and the plans and specifications identified in approved Grading Plan
Number 13322-G which is on file as a permanent public record in the City of
Encinitas.
4. The cost and expense of the Maintenance of the Stormwater Facilities shall be
paid by the Parties. The Parties' share of Stormwater Facilities Maintenance
costs is proportional to number of lots/parcels that Owners and Developer own
as a fraction of the total number of lots/parcels in the Property using and
benefiting from the Stormwater Facilities but excluding common ownership
lots/parcels.
5. In the event the Property is subdivided in future, the owners, heirs, assigns, and
successors in interest of each such newly created parcel(s) shall be included in
the existing HOA and be liable under this Agreement and with the HOA for their
then pro rata share of expenses reflecting such newly created parcels.
6. The Maintenance to be performed under this Agreement shall include upkeep,
repair, and improvements to adequately ensure the Stormwater Facilities are in
proper working order as determined by the City. Upkeep, repair, and
improvements under this Agreement shall include, but are not limited to,
repairing access roadbeds; repairing, preserving, and providing improvement for
the upkeep of drainage structures; removing debris, sediment, oil, grease, and
other pollutants as determined by the City; perpetually preserving adequate
groundcover and/or other erosion control measures within the Property in order
to prevent erosion; and the management of materials, pollutants, and hazardous
waste to prevent pollution of the stormwater system or Municipal Separate
Stormwater Sewer System (MS4) as referenced in local and State codes.
Upkeep, repair, and improvement shall also include other work necessary to
repair and preserve the Stormwater Facilities for their intended purposes as well
as the restoration of the Stormwater Facilities following any non-permitted
modification. The restoration shall be as required to restore the Stormwater
Facilities to the condition existing prior to damage or alteration.
7. Developer, Owners, and HOA are collectively responsible to the City for
Maintenance of Stormwater Facilities so long as either Developer or Owners own
any lots/parcels. Developer remains responsible for Maintenance of Stormwater
Facilities until such Facilities have been approved by the City, even if Developer
no longer owns any lots/parcels of the Property.
8. Upon establishment of an HOA and a management company to manage the
maintenance of the stormwater facilities, the Developer must notify the City of
the contact information for the HOA and management company within thirty (30)
days. At a minimum, contact information for HOA and management company
shall include: organization name, mailing address, email address, phone
number, contract person, contact person's phone number, and email address.
The above information must be provided to the City prior to occupancy of the
first unit (model home occupancy may be exempt from this requirement). If the
Developer is the acting HOA manager at the time of occupancy, the Developer's
current contact information shall be provided in lieu of the management
company information. Any future changes in HOA or management company
contact information shall be provided to the City within thirty (30) days of the
change being made. Contact information shall be provided in writing to the
following address (or current City of Encinitas, Civic Center address):
City of Encinitas
Stormwater Division
505 S Vulcan Ave
Encinitas, CA 92024
9. Any liability of the Parties for personal injury to any worker employed to provide
Maintenance under this Agreement, or to third persons, as well as any liability of
the Parties for damage to the property of any third persons, as a result of or
arising out of Maintenance under this Agreement, shall be borne by the Parties.
10. Parties shall jointly and severally defend, indemnify, and hold harmless City,
City's engineer, its consultants, and each of its officials, directors, officers,
agents, and employees from and against all liability, claims, damages, losses,
expenses, personal injury, and other costs, including costs of defense and
attorney's fees, to any contractor, any subcontractor, any user of the Stormwater
Facilities, or to any other third persons arising out of or in any way related to the
use, Maintenance, or the failure to provide Maintenance of the Stormwater
Facilities. This Agreement imposes no liability of any kind whatsoever on the
City and the Parties agree to hold the City harmless from any liability in the event
the Stormwater Facilities fail to operate properly.
11. Nothing in this Agreement, the specifications, other contract documents, the
City's approval of the plans and specifications, or the City's inspection of the
work constitutes an acknowledgement of any City responsibility for any such item
or the material contained therein, and the City, City's engineer, its consultants,
and each of its officials, directors, officers, employees and agents, shall have no
responsibility or liability therefore.
12. The Parties shall provide access to the Stormwater Facilities within the Property
to the City's inspectors, employees, agents, and contractors within 48 hours of
receipt of a written notification by the City. The access shall be provided
unconditionally and without any obstruction, interference, or hazard. Any animals
kept on the Property shall be secured outside of the area subject to the City's
inspection.
13. The Parties hereby grant permission to the City, its authorized agents, and its
employees, to enter upon the Property and to inspect the Stormwater Facilities
following a 48-hour notice whenever the City deems necessary. The purpose of
inspection is to evaluate the condition and performance of the Stormwater
Facilities, to follow-up on reported deficiencies, to respond to citizen complaints,
and/or to comply with State and City requirements for City inspection of such
facilities. The City shall provide the Owner, with copies of the inspection findings
and a directive to commence with any repairs deemed necessary.
14. In the event the Parties fail to preserve the Stormwater Facilities in good working
condition as determined by the City Engineer, the City, its agents, employees, or
its contractors, may enter upon the Property and take the steps deemed
necessary to correct deficiencies and shall charge the costs of such repairs to
the Parties. In the event the City pursuant to this Agreement, performs work of
any nature, or expends any funds for attorney's fees, administrative costs,
contractors, employees, consultants, materials, or other costs in the performance
of said work, the Owner shall reimburse the City. Such reimbursement shall be
due within thirty (30) days of receipt of a notification for all costs incurred by the
City, including any administrative costs and attorney's fees. If said funds are not
paid by the Parties within (30) days, City reserves the right to take legal action for
cost recovery and to file with the County Recorder of San Diego County an
assessment lien on the Property. It is expressly understood and agreed that the
City is under no obligation to perform Maintenance of said Stormwater Facilities,
and in no event shall this Agreement be construed to impose any such obligation
on the City.
15. The terms of this Agreement may be amended in writing following the Parties
request and upon written approval by the City Engineer.
16. This Agreement shall be governed by the laws of the State of California. In the
event that any of the provisions of this Agreement are held to be unenforceable
or invalid by any court of competent jurisdiction, the validity, and enforceability of
the remaining provisions shall not be affected thereby.
IN WITNESS HEREOF, the Parties have executed this Agreement.
OWNER:
yn-" — *7 - /;L -/ 7
Robert A. Mueller Date
for The RMCI Group, Inc.,
Managing Member of Land Holdings, LLC.
Signature of OWNER must be notarized. Attach the appropriate acknowledgement.
CITY OF ENCINITAS: �y
f
ign for y of Encinitas Date
Print Name Title
EXHIBIT "A"
LEGAL DESCRIPTION OF REAL PROPERTY
THE SOUTHERLY 180 FEET OF THE NORTHERLY 950 FEET OF THE EAST HALF OF THE EAST HALF
OF THE NORTHEAST QUARTER OF THE NORTHWEST QUARTER OF SECTION 15, TOWNSHIP 13
SOUTH, RANGE 4 WEST, SAN BERNARDINO MERIDIAN, IN THE CITY OF ENCINITAS, COUNTY OF
SAN DIEGO, STATE OF CALIFORNIA, ACCORDING TO THE UNITED STATES GOVERNMENT
SURVEY APPROVED APRIL 19, 1881.
EXHIBIT "B"
DESCRIPTION AND PLAT OF STORMWATER FACILITIES
MAP NO. 14944
/ I
PARCEL 2 PARCEL I p N° LOT 3
1 Y I I
G I BIOFILTRAT1014 I I LOT 2
BASIN I I I
TPM 15-292 PACIFIC VIEW LANE
I
I
/ I MAP NO. 14944
I I LOT 7 LOT 6
PARCEL 3
PARCEL 4 b
L L
I I
bhA, Inc.
land planning, cMl englneedng, surveying
5115 AVENIDA ENCINAS
SUITE "L"
CARLSBAD, CA. 92008-4387 SCALE. 1"--50'
(760) 931-8700
CALIFORNIA ALL-PURPOSE ACKNOWLEDGMENT CIVIL CODE § 1189
A notary public or other officer completing this certificate verifies only the identity of the individual who signed the
document to which this certificate is attached,and not the truthfulness,accuracy,or validity of that document.
State of California )
County of nan i )
On —f-IL- 11 before me, fh rnirCL nolfilni , AJ + ubl i
Date Here Insert Name and Title of 04 Officer
personally appeared oheY) A Y lurllty
Name(s) of Signer(s)
who proved to me on the basis of satisfactory evidence to be the persorAe)'whose name(sy is/ace'
subscribed to the within instrument and acknowledged to me that he/;hL%/twexecuted the same in
hisAW/their'authorized capacity(io and that by his/twrAl oir signature oyon the instrument the person( ,
or the entity upon behalf of which the person acted, executed the instrument.
I certify under PENALTY OF PERJURY under the laws
of the State of California that the foregoing paragraph
is true and correct.
SAWRASOLTA111 WITNESS my hand and official seal.
NoWr Pp01ie.CaMpray �
Son Disp Copan Signature
Gowro. Doe 25 Y019 S' to of Notary Public
Place Notary Seal Above
OPTIONAL
Though this section is optional, completing this information can deter alteration of the document or
fraudulent reattachment of this form to an unintended document.
Description of Attached Document
Title or Type of Document: Document Date:
Number of Pages: Signers) Other Than Named Above:
Capacity(ies) Claimed by Signer(s)
Signer's Name: Signer's Name:
❑ Corporate Officer — Title(s): ❑ Corporate Officer — Title(s):
Partner — ❑ Limited ❑General ❑ Partner — ❑ Limited ❑ General
Individual ❑Attorney in Fact ❑ Individual ❑Attorney in Fact
❑Trustee ❑Guardian or Conservator ❑Trustee ❑ Guardian or Conservator
- Other: ❑ Other:
Signer Is Representing: Signer Is Representing:
02014 National Notary Association • www.NationaiNotary.org • 1-800-US NOTARY(1-800-876-6827) Item #5907
BF-1
Biofiltration
BMP MAINTENANCE FACT SHEET
FOR
STRUCTURAL BMP BF-1 BIOFILTRATION
Biofiltration facilities are vegetated surface water systems that filter water through vegetation, and soil or
engineered media prior to discharge via underdrain or overflow to the downstream conveyance system.
Biofiltration facilities have limited or no infiltration.They are typically designed to provide enough hydraulic head
to move flows through the underdrain connection to the storm drain system. Typical biofiltration components
include:
Inflow distribution mechanisms (e.g., perimeter flow spreader or filter strips)
Energy dissipation mechanism for concentrated inflows (e.g.,splash blocks or riprap)
Shallow surface ponding for captured flows
• Side slope and basin bottom vegetation selected based on climate and ponding depth
• Non-floating mulch layer
Media layer(planting mix or engineered media)capable of supporting vegetation growth
Filter course layer consisting of aggregate to prevent the migration of fines into uncompacted native soils
or the aggregate storage layer
Aggregate storage layer with underdrain(s)
Impermeable liner or uncompacted native soils at the bottom of the facility
Overflow structure
Normal Expected Maintenance
Biofiltration requires routine maintenance to: remove accumulated materials such as sediment, trash or debris;
maintain vegetation health; maintain infiltration capacity of the media layer; replenish mulch; and maintain
integrity of side slopes, inlets, energy dissipators, and outlets. A summary table of standard inspection and
maintenance indicators is provided within this Fad Sheet.
Non-Standard Maintenance or BMP Failure
If any of the following scenarios are observed, the BMP is not performing as intended to protect downstream
waterways from pollution and/or erosion. Corrective maintenance, increased inspection and maintenance, BMP
replacement, or a different BMP type will be required.
The BMP is not drained between storm events. Surface ponding longer than approximately 24 hours
following a storm event may be detrimental to vegetation health, and surface ponding longer than
approximately 96 hours following a storm event poses a risk of vector(mosquito)breeding. Poor drainage
can result from clogging of the media layer, filter course, aggregate storage layer, underdrain, or outlet
structure.The specific cause of the drainage issue must be determined and corrected.
Sediment, trash, or debris accumulation greater than 25% of the surface ponding volume within one
month. This means the load from the tributary drainage area is too high, reducing BMP function or
clogging the BMP. This would require pretreatment measures within the tributary area draining to the
BMP to intercept the materials. Pretreatment components,especially for sediment,will extend the life of
components that are more expensive to replace such as media,filter course, and aggregate layers.
• Erosion due to concentrated storm water runoff flow that is not readily corrected by adding erosion
control blankets, adding stone at flow entry points, or minor re-grading to restore proper drainage
BF-1
Biofiltration
according to the original plan. If the issue is not corrected by restoring the BMP to the original plan and
grade,the [City Engineer] shall be contacted prior to any additional repairs or reconstruction.
Other Special Considerations
Biofiltration is a vegetated structural BMP. Vegetated structural BMPs that are constructed in the vicinity of, or
connected to,an existing jurisdictional water or wetland could inadvertently result in creation of expanded waters
or wetlands. As such,vegetated structural BMPs have the potential to come under the jurisdiction of the United
States Army Corps of Engineers, SDRWQCB, California Department of Fish and Wildlife, or the United States Fish
and Wildlife Service. This could result in the need for specific resource agency permits and costly mitigation to
perform maintenance of the structural BMP. Along with proper placement of a structural BMP, routine
maintenance is kev to preventing this scenario.
BF-1
Biofiltration
SUMMARY OF STANDARD INSPECTION AND MAINTENANCE FOR BF-1 BIOFILTRATION
The property owner is responsible to ensure inspection,operation and maintenance of permanent BMPs on their property unless responsibility has been formally transferred to an
agency,community facilities district,homeowners association,property owners association,or other special district.
Maintenance frequencies listed in this table are average/typical frequencies.Actual maintenance needs are site-specific,and maintenance may be required more frequently.
Maintenance must be performed whenever needed,based on maintenance indicators presented in this table.The BMP owner is responsible for conducting regular inspections to see
when maintenance is needed based on the maintenance indicators.During the first year of operation of a structural BMP,inspection is recommended at least once prior to August 31
and then monthly from September through May.Inspection during a storm event is also recommended.After the initial period of frequent inspections,the minimum inspection and
maintenance frequency can be determined based on the results of the first year inspections.
Threshold/Indicator Maintenance Action Typical Maintenance Frequency Comments
Accumulation of sediment,litter,or debris Remove and properly dispose of Inspect monthly.If the BMP is 25%full* Avoid vehicular traffic on the basin bottom
accumulated materials,without damage to or more in one month,increase (other than grass mowing equipment)to
the vegetation or compaction of the media inspection frequency to monthly plus prevent damage to the media layer.The
layer. after every 0.1-inch or larger storm most common tools for maintenance are
event. mowers and hand tools to remove built up
• Remove any accumulated materials sediment and debris in the basin and to
found at each inspection. redistribute media displaced.
Obstructed inlet or outlet structure Clear blockage. Inspect monthly and after every 0.5-inch Grated lids on catch basins can be removed
or larger storm event. for inspecting all outlet structure
• Remove any accumulated materials found components. The most common tool for
at each inspection. cleaning catch basins is an industrial
vacuum truck with a tank and vacuum hose
(e.g.Vactor truck)to remove sediment and
debris from the sump.
Damage to structural components such as Repair or replace as applicable Inspect annually.
weirs,inlet or outlet structures Maintenance when needed.
Poor vegetation establishment Re-seed,re-plant,or re-establish vegetation • Inspect monthly. Irrigate or hand-water vegetation as needed
per original plans. • Maintenance when needed. to help plants establish in the first few years
of installation or after as needed.
Dead or diseased vegetation Remove dead or diseased vegetation,re- • Inspect monthly. Treat all diseased trees and shrubs
seed,re-plant,or re-establish vegetation • Maintenance when needed. mechanically or by hand depending on the
per original plans. insect or disease infestation.
"25%full"is defined as X of the depth from the design bottom elevation to the crest of the outflow structure(e.g.,if the height to the outflow opening is 12 inches from the bottom
elevation,then the materials must be removed when there is 3 inches of accumulation—this should be marked on the outflow structure).
BF-1
Biofiltration
SUMMARY OF STANDARD INSPECTION AND MAINTENANCE FOR BF-1 BIOFILTRATION(Continued from previous page)
Threshold/Indicator Maintenance Action Typical Maintenance Frequency Comments
Overgrown vegetation Mow or trim as appropriate. • Inspect monthly. Routine maintenance requires the same
• Maintenance when needed. equipment that is used for general
landscape maintenance.
2/3 of mulch has decomposed,or mulch has Remove decomposed fraction and top off • Inspect monthly. Remulch by hand any void areas. Prevent
been removed with fresh mulch to a total depth of 3 • Replenish mulch annually,or more and control weeds by blocking light and air
inches. frequently when needed based on space. Remove previous layer of mulch and
inspection. apply new mulch layer by hand once every
two to three years.
Erosion due to concentrated irrigation flow Repair/re-seed/re-plant eroded areas and • Inspect monthly. Replace soil media in void areas caused by
adjust the irrigation system. • Maintenance when needed. settlement.
Erosion due to concentrated storm water Repair/re-seed/re-plant eroded areas,and • Inspect after every 0.5-inch or larger The most common tools for maintenance
runoff flow make appropriate corrective measures storm event.If erosion due to storm water are hand tools such as rakes to redistribute
such as adding erosion control blankets, flow has been observed, increase rocks as necessary.
adding stone at flow entry points,or minor inspection frequency to after every 0.1-
re-grading to restore proper drainage inch or larger storm event.
according to the original plan.If the issue is Maintenance when needed. If the issue is
not corrected by restoring the BMP to the not corrected by restoring the BMP to the
original plan and grade,the[City Engineer] original plan and grade, the [City
shall be contacted prior to any additional Engineer] shall be contacted prior to any
repairs or reconstruction. additional repairs or reconstruction.
Standing water in BMP for longer than 24 Make appropriate corrective measures Inspect monthly and after every 0.5-inch
hours following a storm event such as adjusting irrigation system, or larger storm event.If standing water is
Surface ponding longer than approximately removing obstructions of debris or invasive observed,increase inspection frequency
24 hours following a storm event may be vegetation,clearing underdrains,or to after every 0.1-inch or larger storm
detrimental to vegetation health
repairing/replacing clogged or compacted event.
soils. • Maintenance when needed.
BF-1
Biofiltration
SUMMARY OF STANDARD INSPECTION AND MAINTENANCE FOR BF-1 BIOFILTRATION(Continued from previous page)
Threshold/Indicator Maintenance Action Typical Maintenance Frequency Comments
Presence of mosquitos/larvae If mosquitos/larvae are observed:first, Inspect monthly and after every 0.5-inch
immediately remove any standing water by or larger storm event.If mosquitos are
dispersing to nearby landscaping;second, observed,increase inspection frequency
For images of egg rafts, larva, pupa,and make corrective measures as applicable to to after every 0.1-inch or larger storm
adult mosquitos,see restore BMP drainage to prevent standing event.
htto://www.mosciuito.org/biology water. Maintenance when needed.
If mosquitos persist following corrective
measures to remove standing water,or if
the BMP design does not meet the 96-hour
drawdown criteria due to release rates
controlled by an orifice installed on the
underdrain,the[City Engineer]shall be
contacted to determine a solution.A
different BMP type,or a Vector
Management Plan prepared with
concurrence from the County of San Diego
Department of Environmental Health, may
be required.
Underdrain clogged Clear blockage. Inspect if standing water is observed for Grated lids on catch basins can be removed
longer than 24-96 hours following a storm for clearing underdrains. The most
event. common tool for cleaning underdrains/flow
• Maintenance when needed. restrictors is a truck with a tank,vacuum
hose,and a jet hose(e.g.Vactor truck)to
flush sediment and debris from the pipes. If
inspection and maintenance requires
entering a catch basin,it should be
conducted by an individual trained and
certified to work in confined spaces.
References
American Mosquito Control Association.
http://www.mosquito.org/
California Storm Water Quality Association (CASQA). 2003. Municipal BMP Handbook.
https://www.casga.ora/resources/bmp-hand books/mu n icipa I-bmp-handbook
County of San Diego. 2014. Low Impact Development Handbook.
http://www.sandiegocou nty.goy/content/sdc/dpw/watersheds/su smr)/I id.html
San Diego County Copermittees. 2016. Model BMP Design Manual,Appendix E, Fact Sheet INF-3.
http://www.i)roiectcleanwater.org/index.php?option=com content&view=article&id=250<emid=220
BF-1
Biofiltration
Date: Inspector: BMP ID No.:
Permit No.: APN(s):
Property/Development Name: Responsible Party Name and Phone Number:
Property Address of BMP: Responsible Party Address:
INSPECTION AND MAINTENANCE CHECKLIST FOR BF-1 BIOFILTRATION PAGE 1 of 5
Threshold/Indicator Maintenance Recommendation Date Description of Maintenance Conducted
Accumulation of sediment,litter,or debris ❑Remove and properly dispose of
accumulated materials,without damage to the
Maintenance Needed? vegetation
❑ YES ❑ If sediment,litter,or debris accumulation
• NO exceeds 25%of the surface ponding volume
• N/A within one month(25%full*),add a forebay
or other pre-treatment measures within the
tributary area draining to the BMP to
intercept the materials.
❑ Other/Comments:
Poor vegetation establishment ❑ Re-seed,re-plant,or re-
establish vegetation per original
Maintenance Needed? plans
❑ YES ❑ Other/Comments:
❑ NO
❑ N/A
*"25%full"is defined as X of the depth from the design bottom elevation to the crest of the outflow structure(e.g.,if the height to the outflow opening is 12 inches from the bottom
elevation,then the materials must be removed when there is 3 inches of accumulation—this should be marked on the outflow structure).
BF-1
Biofiltration
Date: Inspector: BMP ID No.:
Permit No.: APN)s):
INSPECTION AND MAINTENANCE CHECKLIST FOR BF-1 BIOFILTRATION PAGE 2 of 5
Threshold/Indicator Maintenance Recommendation Date Description of Maintenance Conducted
Dead or diseased vegetation ❑ Remove dead or diseased vegetation,
reseed,re-plant,or re-establish vegetation per
Maintenance Needed? original plans
❑ YES ❑ Other/Comments:
❑ NO
❑ N/A
Overgrown vegetation ❑ Mow or trim as appropriate
❑ Other/Comments:
Maintenance Needed?
❑ YES
❑ NO
❑ N/A
2/3 of mulch has decomposed,or mulch has ❑ Remove decomposed fraction and top off
been removed with fresh mulch to a total depth of 3 inches
❑ Other/Comments:
Maintenance Needed?
❑ YES
❑ NO
❑ N/A
BF-1
Biofiltration
Date: Inspector: BMP ID No.:
Permit No.: APN(s):
INSPECTION AND MAINTENANCE CHECKLIST FOR BF-1 BIOFILTRATION PAGE 3 of 5
Threshold/Indicator Maintenance Recommendation Date Description of Maintenance Conducted
Erosion due to concentrated irrigation flow ❑ Repair/re-seed/re-plant eroded areas and
adjust the irrigation system
Maintenance Needed? ❑ Other/Comments:
❑ YES
❑ NO
❑ N/A
Erosion due to concentrated storm water runoff ❑ Repair/re-seed/re-plant eroded areas,
flow and make appropriate corrective measures
such as adding erosion control blankets,
Maintenance Needed? adding stone at flow entry points,or minor
• YES re-grading to restore proper drainage
• NO according to the original plan
• N/A ❑ If the issue is not corrected by restoring
the BMP to the original plan and grade,the
[City Engineer]shall be contacted prior to
any additional repairs or reconstruction
11 Other/Comments:
BF-1
Biofiltration
Date: Inspector: BMP ID No.:
Permit No.: APN(s):
INSPECTION AND MAINTENANCE CHECKLIST FOR BF-1 BIOFILTRATION PAGE 4 of 5
Threshold/Indicator Maintenance Recommendation Date Description of Maintenance Conducted
Obstructed inlet or outlet structure ❑ Clear blockage
❑ other/Comments:
Maintenance Needed?
❑ YES
❑ NO
❑ N/A
Underdrain clogged(inspect underdrain if ❑ Clear blockage
standing water is observed for longer than 24-96 ❑ Other/Comments:
hours following a storm event)
Maintenance Needed?
❑ YES
❑ NO
❑ N/A
Damage to structural components such as weirs, ❑ Repair or replace as applicable
inlet or outlet structures ❑ Other/Comments:
Maintenance Needed?
❑ YES
❑ NO
❑ N/A
BF-1
Biofiltration
Date: Inspector: BMP ID No.:
Permit No.: APN(s):
INSPECTION AND MAINTENANCE CHECKLIST FOR BF-1 BIOFILTRATION PAGE 5 of 5
Threshold/Indicator Maintenance Recommendation Date Description of Maintenance Conducted
Standing water in BMP for longer than 24-96 ❑ Make appropriate corrective
hours following a storm event' measures such as adjusting irrigation
Surface ponding longer than approximately 24 system,removing obstructions of debris
hours following a storm event may be or invasive vegetation,clearing
detrimental to vegetation health underdrains,or repairing/replacing
clogged or compacted soils
Maintenance Needed? ❑ Other/Comments:
❑ YES
❑ NO
❑ N/A
Presence of mosquitos/larvae ❑ Apply corrective measures to remove
standing water in BMP when standing
For images of egg rafts,larva,pupa,and adult water occurs for longer than 24-96 hours
mosquitos,see following a storm event."
htto://www.mosguito.org/bioloev ❑ Other/Comments:
Maintenance Needed?
❑ YES
❑ NO
❑ N/A
'Surface ponding longer than approximately 24 hours following a storm event maybe detrimental to vegetation health,and surface ponding longer than approximately 96 hours
following a storm event poses a risk of vector(mosquito)breeding.Poor drainage can result from clogging of the media layer,filter course,aggregate storage layer,underdrain,or
outlet structure.The specific cause of the drainage issue must be determined and corrected.
'"If mosquitos persist following corrective measures to remove standing water,or if the BMP design does not meet the 96-hour drawdown criteria due to release rates controlled by
an orifice installed on the underdrain,the [City Engineer] shall be contacted to determine a solution.A different BMP type,or a Vector Management Plan prepared with concurrence
from the County of San Diego Department of Environmental Health,may be required.