2021-221923 ' DOC# 2021-0221923
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Mar 22, 2021 03:43 PM
OFFICIAL RECORDS
Recording Requested By: SAN DIEGOJ
JCOUNTY RECORDER
FEES. $74.00 (SB2 Atkins. $0.00)
City Engineer PAGES 21
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
MANAGEMENT FACILITIES BY HOMEOWNER
A.P.N.: 262-012-11 Grading Plan: 14747-G
Address: 1349 Crest Drive Case No: 3420-2019 CDP
THIS AGREEMENT is between the City of Encinitas, a municipal corporation,
hereinafter referred to as the "City", and ANDREW S. MCMILLIN AND TARA
MCMILLIN, TRUSTEES OF THE ANDREW AND TARA MCMILLIN LIVING TRUST
DATED OCTOBER 21. 2015, its heirs, successors, and assigns, collectively hereinafter
referred to as "Owner", 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.
WHEREAS, this Agreement is required by the City as a 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 benefit said Property and are used by
OWNER; and
WHEREAS, the Property benefits and uses the Stormwater Facilities, which are
described in Exhibit "B"; and
WHEREAS, it is the desire of the City and the responsibility of the Owner 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 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 the intention of the Owner and the City 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 Owner's 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).
i) The Owner shall inspect the Stormwater Facilities after all major storms. In
addition, the Owner shall inspect the Stormwater Facilities at the minimum
frequency specified in Exhibit "C", but not less than twice per year.
ii) The Owner shall provide upkeep and repair to preserve the Stormwater
Facilities in good working order and shall repair all deficiencies identified in
the Owner's 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 during any
storm event until such time as the Facilities are restored to good working
order. 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 Owner shall ensure that the Stormwater
Facilities are in proper working order for the rainy season, which starts on
October 1.
iii) The Owner 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 Owner 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 12 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 Owner in accordance with the terms and conditions of this agreement and the
plans and specifications identified in approved Grading Plan Number 14747-G which
is on file as a permanent public record in the City of Encinitas.
4) The cost and expense of Maintenance of the Stormwater Facilities shall be paid by
the Owner.
5) In the event the Property is subdivided in the future, the owners, heirs, assigns, and
successors in interest of each such newly created parcel(s) shall be liable under this
Agreement 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) Any liability of the Owner for personal injury to any worker employed to provide
Maintenance under this Agreement, or to third persons, as well as any liability of the
Owner 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 Owner.
8) Owner shall jointly and severally defend, indemnify, and hold harmless the 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 for the Stormwater Facilities. This Agreement
imposes no liability of any kind whatsoever on the City and the Owner agrees to hold
the City harmless from any liability in the event the Stormwater Facilities fail to
operate properly.
9) 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.
10)The Owner shall provide access to the Stormwater Facilities within the Property to
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.
11)The Owner hereby grants 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.
12)ln the event the Owner fails to maintain 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 Owner. 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 in full. 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 Owner 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 maintain or
repair said Stormwater Facilities, and in no event shall this Agreement be construed
to impose any such obligation on the City.
13)The terms of this Agreement may be amended in writing following Owner's request
and upon written approval by the City Engineer.
14)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.
OWN
ndr S. McMillin, Trustee Date
10 I� 2,OW
Tara McMi lin, trustee Date
Signature of OWNER must be notarized. Attach the appropriate acknowledgement.
CITY OF ENCINITAS:
Edward J. W er Date
Ci nee ty Engi
Development Services Department
City of Encinitas
` ALL-PURPOSE ACKNOWLEDGMENT
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 SS.
On oa - cRU -aoe9\ before me, )7��J C7 QsA Notary Public,
DATE,
personally appeared �0.�C� �, ��\mom who proved to me on the
basis of satisfactory evidence to be the person(s)whose name(s) is/are subscribed to the within instrument
and acknowledged to me that he/she/they executed the
same in his/her/their authorized capacity(ies), and that
by his/her/their signature(s) on the instrument the
person(s), or the entity upon behalf of which the
person(s)acted, executed the instrument.
DEANA GAY
ScN DIEGO COUNTY M.n COUNTY s
Z AN DIE y I certify under PENALTY OF PERJURY under the
D
Qq NOTARY PUBLIC-CALIFORNIAZ laws of the State of California that the foregoing
MY COMMISSION EXPIRES -'
AUGUST 23,2021
paragraph is true and correct.
W S 0my hand and official seal.
I
GL
PLACE NOTARY SEAL IN ABOVE SPACE NOTARY'S SIGNATU
rl
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APA01/2015 NOTARY BONDS,SUPPLIESAND FORMS AT HTTP://WWW.VALLEY-SIERRA.COM 02005-2017 VALLEY-SIERRA INSURANCE
A A
CALIFORNIA ACKNOWLEDGMENT CIVIL CODE § 1189
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to which this certificate is attached,and not the truthfulness,accuracy,or validity of that document.
State of California
County of L,� \ I
On before me, C!A.I I ja�¢110 D� V L ea/vD , n alrm �u-b�1 G
Date Here I erte t Na of the Office)
personally appeared rtk( ) 'S . M CPI J k h l
T TQ&19- �4 c_P-4 r I I I
Names)of Signer(s)
who proved to me on the basis of satisfactory evidence to be the ersor&Ywhose nam s ' r subscribed
to the within instrum�ept and acknowledged to me that hQLs >the executed the same in� her�h€R�
authorized capaci i and that b his4her/�signature�n the instrument the perso or tt entity
upon behalf of which the perso (s) cted,ex ed the instrument.
I certify under PENALTY OF PERJURY under the
..-. GUADALUPE V. LEANO laws of the State of California that the foregoing
Notary Public -California z paragraph is true and correct.
-: San Diego County z
Commission• 2174614 = WITNESS my hand and official seal.
My Comm.Expires Dec 31,2020
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o Partner- ❑ Limited o General ❑ Partner- ❑ Limited ❑ General
o Individual ❑ Attorney in Fact o Individual ❑ Attorney in Fact
o Trustee ❑ Guardian or Conservator 0 Trustee ❑ Guardian or Conservator
❑ Other: ❑ Other:
Signer is Representing: Signer is Representing:
(02018 National Notary Association
"EXHIBIT A"
LEGAL DESCRIPTION
Real property in the City of Encinitas, County of San Diego, State of California,described as
follows:
THE WESTERLY 278.03 FEET OF LOT 7 IN BLOCK"E"OF PALOMARES HEIGHTS, IN THE CITY OF
ENCINITAS, COUNTY OF SAN DIEGO, STATE OF CALIFORNIA, ACCORDING TO MAP THEREOF NO.
2114, FILED IN THE OFFICE OF THE COUNTY RECORDER OF SAN DIEGO COUNTY, JUNE 19, 1928.
APN: 262-012-11-00
STORM WATER MAINTENNACE AGREEMENT
EXHIBITS 1
I. r
MUEN S. MaWILUN ! I I
MNILLIN LIVlMTR. '
P.O. BOX 21010
EL CALM CA -cM21
SITE IDES
1349 CREST DRIVE
MINNA.% GA -%JO24 SITE
AM 262-012-11
LEGAL DEWRIPTION 'Y
PROPERTYREAL IN THE CITY OF EICINITA.%
CaNTY OF SAN I I CI STATE OF CALIFORNIA. '
DESCRIBED AS FOLLOW
THE hESTERLY 278.03a OF LOT1
BLOW OF PALOWRES HEIGHS6 1IN THE VrcZN7TY
CITY OF ENCINITAa COLWTY OF SAN DIEGO,
STATE OF CALIFORNIA, I!/'II I MAP NOT / SCALE
THEREOF I 2114 FILED 1 OFFICE /
THE Ca#VTY RECORDER OF SAN I I CI /I
DEEP-"To I'1 G
1 7'
7 / 1 7/ SO MS 1'
CITY 1 71 EGM.
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1 7P 1 MET
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7 1 7E'EI `I I _ 'L* SEE NOTE BELOWSPREADER
MUNEA
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AW `7 1 :E I • `7SHEET
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P PE IP 71 I' 1 / .S 1. .E. . 1.
1 :7 I I7.1'.B4 AETWK1 HAVE MLY I P01NT OF
CaVECTION TO A BOX V14 0RlFZCE
RETENTIrill 7 1 77'7D ^/ 1LAYER7 SHALL HE AMVD#xDEEP
WVY LOAM" SOIL I I MORE RM Z CLAY QOfMNT.
AND `1 FREE OF NaMB MEMS.
314- M&ED ROW LAYER SHALL
71 I I ►' 1 1 , 11 1 I' C 1•
UT MAY BE
1E E
DETAIL
IORETENTION DETAIL
NOT
_/ SCALE.
STORM WATER MAINTENNACE AGREEMENT
EXHIBIT'B-2'
W NTABO DIMETMm eAs1N
I NOT To BE MWIF7ED WITHOUT
FEAMISSM FFXN 'OE Cm CF
EWDUAS — —
I
1 1 1 III 1
i MAINTABO Sn M�' �
ag4IN SYSTEM
R 1
1 '
j11 A 1
' PROJECT SITE "I 1 u
A APN: 262-012-11 1
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1 1
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1 1 1
1 1 1j
1 1 1 11
1 1 11
1 1 11 I
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1 1 11
1 1 11 1
1 ' MAWTAM S 41 1 j
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1 1 1 1 I
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1 1 1
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CREST DRNE
SCALE: 1'--40
PR-1
Biofiltration with Partial Retention
BMP MAINTENANCE FACT SHEET
FOR
STRUCTURAL BMP PR-1 BIOFILTRATION WITH PARTIAL RETENTION
Biofiltration with partial retention facilities are vegetated surface water systems that filter water through
vegetation and soil or engineered media prior to infiltrating into native soils,discharge via underdrain,or overflow
to the downstream conveyance system. These BMPs have an elevated underdrain discharge point that creates
storage capacity in the aggregate storage layer.Typical biofiltration with partial retention 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)
• Uncompacted native soils at the bottom of the facility
• Overflow structure
Normal Expected Maintenance
Biofiltration with partial retention 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 Fact 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.
PR-1 Page 1 of 11
January 12, 2017
PR-1
Biofiltration with Partial Retention
• 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
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 with partial retention 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 key to preventing this scenario.
PR-1 Page 2 of 11
January 12, 2017
PR-1
Biofiltration with Partial Retention
SUMMARY OF STANDARD INSPECTION AND MAINTENANCE FOR PR-1 BIOFILTRATION WITH PARTIAL RETENTION
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
Accumulation of sediment,litter,or debris Remove and properly dispose of accumulated materials, . Inspect monthly. If the BMP is 25% full" or more in
without damage to the vegetation or compaction of the one month, increase inspection frequency to monthly
media layer. plus after every 0.1-inch or larger storm event.
• Remove any accumulated materials found at each
inspection.
Obstructed inlet or outlet structure Clear blockage. . Inspect monthly and after every 0.5-inch or larger
storm event.
• Remove any accumulated materials found at each
inspection.
Damage to structural components such as weirs,inlet or Repair or replace as applicable. . Inspect annually.
outlet structures e Maintenance when needed.
Poor vegetation establishment Re-seed, re-plant, or re-establish vegetation per original • Inspect monthly.
plans. • Maintenance when needed.
Dead or diseased vegetation Remove dead or diseased vegetation, re-seed, re-plant, . Inspect monthly.
or re-establish vegetation per original plans. . Maintenance when needed.
Overgrown vegetation Mow or trim as appropriate. • Inspect monthly.
• Maintenance when needed.
2/3 of mulch has decomposed, or mulch has been Remove decomposed fraction and top off with fresh . Inspect monthly.
removed mulch to a total depth of 3 inches. e Replenish mulch annually, or more frequently when
needed based on inspection.
•"25%full"is defined as%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).
PR-1 Page 3 of 11
January 12, 2017
PR-1
Biofiltration with Partial Retention
SUMMARY OF STANDARD INSPECTION AND MAINTENANCE FOR PR-1 BIOFILTRATION WITH PARTIAL RETENTION Continued from previous page)
Threshold/indicator Maintenance Action Typical Maintenance Frequency
Erosion due to concentrated irrigation flow Repair/re-seed/re-plant eroded areas and adjust the • Inspect monthly.
irrigation system. • Maintenance when needed.
Erosion due to concentrated storm water runoff flow Repair/re-seed/re-plant eroded areas, and make • Inspect after every 0.5-inch or larger storm event. If
appropriate corrective measures such as adding erosion erosion due to storm water flow has been observed,
control blankets, adding stone at flow entry points, or increase inspection frequency to after every 0.1-inch
minor re-grading to restore proper drainage according or larger storm event.
to the original plan. If the issue is not corrected by • Maintenance when needed. If the issue is not
restoring the BMP to the original plan and grade, the corrected by restoring the BMP to the original plan
[City Engineer]shall be contacted prior to any additional and grade,the [City Engineer]shall be contacted prior
repairs or reconstruction. to any additional repairs or reconstruction.
Standing water in BMP for longer than 24 hours Make appropriate corrective measures such as adjusting • Inspect monthly and after every 0.5-inch or larger
following a storm event irrigation system, removing obstructions of debris or storm event. If standing water is observed, increase
Surface ponding longer than approximately 24 hours invasive vegetation, clearing underdrains, or inspection frequency to after every 0.1-inch or larger
following a storm event may be detrimental to repairing/replacing clogged or compacted soils. storm event.
vegetation health
• Maintenance when needed.
Presence of mosquitos/larvae If mosquitos/larvae are observed: first, immediately • Inspect monthly and after every 0.5-inch or larger
remove any standing water by dispersing to nearby storm event. If mosquitos are observed, increase
For images of egg rafts, larva, pupa, and adult landscaping; second, make corrective measures as inspection frequency to after every 0.1-inch or larger
mosquitos,see applicable to restore BMP drainage to prevent standing storm event.
htto://www.moscuito.ore/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 longer than
24-96 hours following a storm event.
• Maintenance when needed.
PR-1 Page 4 of 11
January 12, 2017
PR-1
Biofiltration with Partial Retention
References
American Mosquito Control Association.
htto://www.mosciuito.org/
California Storm Water Quality Association(CASQA).2003. Municipal BMP Handbook.
htt s: lwww.cascia.ore/resources/bmp-handbooks/municipal-bmo-handbook
County of San Diego. 2014. Low Impact Development Handbook.
http://www,sandiegocounty.aov/content/sdc/d pw/watershed s/su sm o/l i d.html
San Diego County Copermittees. 2016, Model BMP Design Manual,Appendix E,Fact Sheet PR-1.
http://www.proiectcleanwater.org/index.i3hp?option=com content&view=a rticle&id=250&Item id=220
PR-1 Page 5 of 11
January 12,2017
PR-1
Biofiltration with Partial Retention
Page Intentionally Blank for Double-Sided Printing
PR-1 Page 6 of 11
January 12, 2017
PR-1
Biofiltration with Partial Retention
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 PR-1 BIOFILTRATION WITH PARTIAL RETENTION PAGE 1 of 5
Threshold/indicator Maintenance Recommendation Date Description of Maintenance Conducted
Accumulation of sediment,litter,or debris ❑ Remove and properly dispose of
Maintenance Needed? accumulated materials,without damage
to the vegetation
❑YES ❑ If sediment,litter,or debris accumulation
El NO exceeds 25%of the surface pending
N/A volume 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
Maintenance Needed? vegetation per original plans
❑YES ❑Other/Comments:
❑ NO
❑ N/A
'"25%full"is defined as Y 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).
PR-1 Page 7 of 11
January 12, 2017
PR-1
Biofiltration with Partial Retention
Date: 1 Inspector: BMP ID No.:
Permit No.: I APN(s):
INSPECTION AND MAINTENANCE CHECKLIST FOR PR-1 BIOFILTRATION WITH PARTIAL RETENTION PAGE 2 of 5
Threshold/Indicator Maintenance Recommendation Date Description of Maintenance Conducted
Dead or diseased vegetation ❑ Remove dead or diseased vegetation,re-
Maintenance Needed? seed,re-plant,or re-establish vegetation
per original plans
❑YES El NO ElOther/Comments:
❑ N/A
Overgrown vegetation ❑ Mow or trim as appropriate
Maintenance Needed? ❑Other/Comments:
❑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
Maintenance Needed? inches
❑YES ❑other/Comments:
❑ NO
❑ N/A
PR-1 Page 8 of 11
January 12, 2017
PRA
Biofiltration with Partial Retention
Date: inspector: 7FWP ID No.:
Permit No.: APN(s):
INSPECTION AND MAINTENANCE CHECKLIST FOR PR-1 BIOFILTRATION WITH PARTIAL RETENTION 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
Maintenance Needed? adjust the irrigation system
❑YES ❑Other/Comments:
❑ NO
❑ N/A
Erosion due to concentrated storm water ❑ Repair/re-seed/re-plant eroded areas,and
runoff flow make appropriate corrective measures
Maintenance Needed? such as adding erosion control blankets,
adding stone at flow entry points,or
❑ YES minor re-grading to restore proper
❑ NO drainage 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
❑other/Comments:
PR-1 Page 9 of 11
' January 12, 2017
PR-1
Biofiltration with Partial Retention
Date: inspector: BMP ID No.:
Permit No.: APN s :
INSPECTION AND MAINTENANCE CHECKLIST FOR PR-1 BIGFILTRATION WITH PARTIAL RETENTION PAGE 4 of 5
Threshold/Indicator Maintenance Recommendation Date Description of Maintenance Conducted
Obstructed inlet or outlet structure ❑ Clear blockage
Maintenance Needed? ❑Other/Comments:
❑YES
❑ NO
❑ N/A
Underdrain clogged (inspect underdrain if ❑Clear blockage
standing water is observed for longer than 24-
96 hours following a storm event) ❑other/Comments:
Maintenance Needed?
❑YES
❑ NO
❑ N/A
Damage to structural components such as ❑ Repair or replace as applicable
weirs,inlet or outlet structures
❑ Other/Comments:
Maintenance Needed?
❑YES
❑ NO
❑ N/A
PR-1 Page 10 of 11
. January 12, 2017
PR-1
Biofiltration with Partial Retention
Date: inspector: BMP ID No.:
Permit No.: APN(s):
INSPECTION AND MAINTENANCE CHECKLIST FOR PR-2 BIOFILTRATION WITH PARTIAL RETENTION PAGE 5 of 5
Threshold/Indicator Maintenance Recommendation Date Description of Maintenance Conducted
Standing water in BMP for longer than 24 hours ❑ Make appropriate corrective measures such
following a storm event" as adjusting irrigation system,removing
Surface ponding longer than approximately 24 obstructions of debris or invasive
hours following a storm event may be vegetation,clearing underdrains,or
detrimental to vegetation health 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.*"
htti)://www.mosouito.orp/biolog
❑ Other/Comments:
Maintenance Needed?
❑YES
❑ NO
❑ N/A
'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.
""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.
PR-1 Page 11 of 11
,- January 12, 2017