ITEM:		CONSENT CALENDAR
22.	CONSIDER ENTERING INTO AGREEMENTS FOR ASR EXPANSION PROJECT STORM WATER POLLUTION PREVENTION PLAN DEVELOPMENT AND MONITORING SERVICES
Meeting Date:			June 18, 2018	Budgeted:	Yes
From:			David J. Stoldt	Program/	Water Supply Projects
			General Manager	Line Item:	35-04-786004
Prepared By:			Maureen Hamilton	Cost Estimate:	$44,000
General Counsel Review: N/A
Committee Recommendation: The Administrative Committee reviewed this item on June 11, 2018 and recommended approval.
CEQA Compliance: This action does not constitute a project as defined by the California Environmental Quality Act Guidelines Section 15378.

SUMMARY: MPWMD’s Santa Margarita ASR site backflush basin must be expanded to accommodate backflush water from the Seaside Middle School and future Fitch Park ASR sites. Additionally, disinfection facilities must be constructed at the Santa Margarita site to treat production water from both ASR wells at that site and the two ASR wells at the Middle School site. The land agreement to accommodate these facilities was obtained on November 3, 2016.

The Project is required to have a Qualified SWPPP Developer (QSD) develop a Storm Water Pollution Prevention Plan (SWPPP) by Construction General Permit Order 2009-0009-DWQ.

A Qualified SWPPP Practitioner (QSP) must be designated and assume responsibility for SWPPP Best Management Practices (BMPs) implementation and monitoring.

RECOMMENDATION: Staff recommends that the Board authorize the General Manager to 1) enter into a contract with Schaaf and Wheeler for development of a SWPPP in an amount not-to-exceed (NTE) $14,000 and 2) enter into a contract for Qualified Stormwater Practitioner services to assist in SWPPP BMP implementation and compliance monitoring in an amount NTE $30,000.

BACKGROUND: During injection season, ASR wells must be backflushed weekly to maintain injection capacity. Backflush water from the Seaside Middle School site is conveyed to Santa Margarita backflush basin because a basin is not permitted on school grounds. Backflush water from two future Cal-Am ASR wells will be conveyed to the Santa Margarita backflush basin because the new ASR site does not have space for a backflush basin. The backflush basin is not sized to accommodate backflush water from six wells and must be expanded.

The backflush basin expansion will require the excavated soil to be stockpiled until a permanent disposition can be identified on the former Fort Ord Seaside Munitions Response Area (MRA), in compliance with the Construction Support Plan for unexploded ordnance which must be approved by the EPA, Department of Toxic Substances Control, and Army.

Water recovered from the ASR wells must be disinfected prior to distribution. Currently disinfection facilities exist for one well at the Santa Margarita site, ASR1. Disinfection facilities are not allowed at the Middle School site. Disinfection facilities for all four ASR wells at the Santa Margarita and Middle School sites must be constructed at the Santa Margarita site. These facilities are being designed and are expected to be constructed in 2019.

The Project to expand the backflush basin and construct disinfection facilities will be constructed wholly within the existing land agreement limits.

Major components of the Project must be constructed outside of injection season, June 1 through November 30. Additionally, disinfection facility tie-in to the production system will interrupt production from the Santa Margarita site, and thus should be constructed early in the summer. Due to the limited construction period and land constraint, the backflush basin expansion is scheduled to be constructed this summer pending receipt of all permits. While the backflush basin expansion will disturb less than 1 acre, it is part of a larger common plan of development and the Construction General Permit Order 2009-0009-DWQ applies.

Schaaf and Wheeler developed the SWPPP for the Pure Water Monterey Injection Wells Facilities, located on the same assessor’s parcel as the MPWMD’s ASR site. The soil characteristics, local surface water bodies, and practicable controls on the parcel would be the same for Pure Water Monterey and the Project. Schaaf and Wheeler is uniquely qualified to develop the Project SWPPP.

A QSP must be designated and is assigned responsibility for the implementation of the SWPPP BMPs, including non-stormwater and stormwater visual observations. After construction begins, monitoring and QSP services will be required until the soil is permanently placed and the area is re-vegetated, a time period estimated to be 2 years. The NTE QSP contract would be issued after all project permits have been received and after the Project Notice to Proceed has been issued.

QSP services are provided on a time and material basis. The cost estimate is based on the contract price for the Pure Water Monterey Injection Wells Facilities QSP monitoring services. Because monitoring must take place while the site is inactive between construction contracts, the service will be managed directly by MPWMD.

EXHIBIT

22-A Proposal for Aquifer Storage and Recovery Site Expansion, Construction Storm Water Pollution Prevention Plan Services

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