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HomeMy WebLinkAboutItem 11h - Rio Hondo-San Gabriel River Watershed Management JPA PaymentRio Hondo/San Gabriel River Watershed Management JPA Payment
January 21, 2025
Page 1 of 3
DATE: January 21, 2025
TO: Honorable Mayor and City Council
FROM: Paul Cranmer, Public Works Services Director
By: Briget Arndell, Environmental Services Manager
SUBJECT: AUTHORIZE PAYMENT TO THE RIO HONDO/SAN GABRIEL RIVER
WATERSHED MANAGEMENT JOINT POWERS AUTHORITY FOR THE
REASONABLE ASSURANCE ANALYSIS (“RAA”) UPDATE AND
ENCANTO PARK PROJECT IN THE AMOUNT OF $557,486.54
CEQA: Not a Project
Recommendation: Authorize and Approve
SUMMARY
To meet state mandated stormwater requirements, the City of Arcadia became a member
of the Rio Hondo/San Gabriel River Watershed Management Joint Powers Authority
(“JPA”), consisting of the Cities of Arcadia, Bradbury, Duarte, Monrovia, and Sierra
Madre. As part of the JPA, the City of Arcadia is responsible for paying its fair share for
annual membership fees, monitoring costs, and program expenses. The JPA is currently
working on completing the Reasonable Assurance Analysis (“RAA”) update for the
Encanto Park Project, which will advance the vision of the JPA by creating a stormwater
capture and cleaning system to recharge the local groundwater.
It is recommended that the City Council authorize payment to the Rio Hondo/San Gabriel
River Watershed Management Joint Powers Authority for the RAA Update and the
Encanto Park Project, in the amount of $557,486.54.
BACKGROUND
In 2012, the Los Angeles Regional Water Quality Control Board adopted the National
Pollutant Discharge Elimination System Municipal Separate Storm Sewer System Permit
(“MS4 Permit”), which established waste discharge requirements for stormwater and non-
stormwater discharges within the watersheds of Los Angeles County. Since then, the
Cities of Arcadia, Bradbury, Duarte, Monrovia, and Sierra Madre have formed a Joint
Powers Authority (“JPA”), in cooperation with the County of Los Angeles and Los Angeles
County Flood Control District, to fulfil the requirements of the MS4 Permit for the Rio
Hondo/San Gabriel River watershed. The JPA submitted a Watershed Management Plan
(“WMP”) to the Water Quality Control Board, which was approved in 2016.
Rio Hondo/San Gabriel River Watershed Management JPA Payment
January 21, 2025
Page 2 of 3
The JPA manages logistics for projects in the WMP, which includes the Arcadia Wash
Ecosystem Restoration and Groundwater Recharge, the Rio Hondo Ecosystem
Restoration located at the Peck Road Lake Park, the Encanto Park Stormwater Capture
Project located in the City of Duarte, and Basin 3E Enhancements located at the Santa
Fe Spreading Grounds. Furthermore, the JPA is handling all membership fees, payments
for stormwater studies, and all projects and programs in the WMP. Each member city of
the JPA, the County of Los Angeles, and the Los Angeles County Flood Control District
has agreed to pay a proportional share of the total costs.
DISCUSSION
A key required element of the WMP is the Reasonable Assurance Analysis (“RAA”), which
is used to quantitatively demonstrate that the implementation strategies effectively
address water quality priorities. The RAA supports the WMP by identifying which control
measures need to be implemented for the MS4 Permit, as it relates to best management
practices. The RAA needs to be re-evaluated and renewed to meet watershed
requirements given the most updated information was provided in 2016. The RAA update
includes watershed models, plans, and projects to meet objectives. The RAA is a
compliance measure.
The Encanto Park Stormwater Capture Project has been approved to support stormwater
capture and management and improve water quality in the Rio Hondo/San Gabriel River
Watershed. Encanto Park is a public recreational facility maintained by the City of Duarte
and is located adjacent to the San Gabriel River. The project’s purpose is to decrease the
pollutants in stormwater and dry-weather runoff that enters the San Gabriel River, which
is part of the City of Arcadia’s watershed. The project entails constructing and operating
a stormwater capture and treatment facility on the western side of Encanto Park, as well
as other ancillary park improvements to benefit park users. The treatment facility would
intercept stormwater and dry-weather flow from existing underground storm drain
pipelines within the park and pump the water to a shallow underground reservoir beneath
the multi-use field, for infiltration into the groundwater basin. Craftwater, Inc. has
completed the design of the Encanto Park Project. Craftwater is carrying out the RAA with
an amended amount of $470,000. The total cost estimate for the Encanto Park Project is
$6,600,000. The JPA must now commit to sharing the cost of construction to move
forward with completing the project.
The individual agency cost was calculated with a cost-sharing formula originally
established for shared expenses based on 10% of the total fee being evenly distributed
between the five JPA cities and County of Los Angeles, and the remaining 90% of the
cost being calculated based on the agency’s total acreage. The City of Arcadia accounts
for 11 acres of land use in the Rio Hondo/San Gabriel River Watershed Area, which
equates to 34% of the cost share. Therefore, the City’s share for the RAA Update will be
$152,336.44 and the share for the Encanto Park Project will be $405,150.10. The total
payment for FY 2024-25 will be $557,486.54.
Rio Hondo/San Gabriel River Watershed Management JPA Payment
January 21, 2025
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ENVIRONMENTAL ANALYSIS
The proposed action of authorizing a payment to the JPA does not constitute a project
under the California Environmental Quality Act (“CEQA”), as it can be seen with certainty
that it will have no impact on the environment. Any environmental reviews that might be
necessary would be overseen by the JPA, acting as lead agency for all efforts of the JPA.
FISCAL IMPACT
For Fiscal Year 2024-25, the City of Arcadia’s contribution for the RAA Update is
$152,336.44. Arcadia’s contribution for the Encanto Park Project is $405,150.10. Both
amounts total to $557,486.54. Sufficient funds are budgeted in the Fiscal Year 2024-25
Capital Improvement Program for these expenses. Additionally, the City of Arcadia is
expected to receive approximately $1,015,000 in local return from the Safe Clean Water
Program (Measure W) annually, and these funds have been allocated in the CIP.
RECOMMENDATION
It is recommended the City Council determine that this action does not constitute a project
under the California Environmental Quality Act (“CEQA”); and authorize payment to the
Rio Hondo/San Gabriel River Watershed Management Joint Powers Authority for the
RAA Update and the Encanto Park Project in the amount of $557,486.54.
Attachments: Fiscal Year 2024-25 Rio Hondo/San Gabriel River Watershed
Management JPA Reasonable Assurance Analysis Update and
Encanto Park Project Invoices
INVOICE
DATE: December 12, 2024
INVOICE NO.: RAA-24-01
PAYMENT IS DUE UPON RECEIPT
To: City of Arcadia
Attn: Dominic Lazzaretto
Rio Hondo/San Gabriel River Watershed Management Authority
Reasonable Assurance Analysis Update
Fiscal Year 2024-2025
Description Amount
Land Use Amount (90% of Total Cost * Percent of Area) $144,503.11
Base Fee (10% of Total Cost/6 Agencies) $7,833.33
Total Due $152,336.44
Please remit payment to:
(via ACH)
Wells Fargo
Account Name: RHSGR Checking
Routing Number: 121000248
Account Number: 4831818000
- or -
(via check)
Rio Hondo/San Gabriel River Watershed Management Joint Powers Authority
Attn: Koa Consulting, Inc.
419 Main Street, No. 320
Huntington Beach, CA 92648
WMP Page from the FY 24-25 Budget (Approved on July 17, 2024)
INVOICE
DATE: December 12, 2024
INVOICE NO.: ENC-24-01
PAYMENT IS DUE UPON RECEIPT
To: City of Arcadia
Attn: Dominic Lazzaretto
Rio Hondo/San Gabriel River Watershed Management Authority
Encanto Park Stormwater Capture
Fiscal Year 2024-2025
Description Amount
Land Use Amount (90% of Total Cost * Percent of Area) $384,316.77
Base Fee (10% of Total Cost/6 Agencies) $20,833.33
Total Due $405,150.10
Please remit payment to:
(via ACH)
Wells Fargo
Account Name: RHSGR Checking
Routing Number: 121000248
Account Number: 4831818000
- or -
(via check)
Rio Hondo/San Gabriel River Watershed Management Joint Powers Authority
Attn: Koa Consulting, Inc.
419 Main Street, No. 320
Huntington Beach, CA 92648
Encanto Park Stormwater Capture Page from the FY 24-25 Budget
(Approved on July 17, 2024)