FACT SHEET TEMPLATE FOR WATER SUPPLY ALTERNATIVES

 

MPWMD Special Workshop, August 25, 2011

 

Alternative Type:  Aquifer Storage and Recovery (ASR)

Project Name:   Water Project 2, Seaside Middle School site ASR-1 and ASR-2 Wells

Project Sponsors:  Cal-Am in partnership with MPWMD (prepared by Joe Oliver)

Location:  999 Coe Avenue, Seaside – map on reverse side

Project Description: Divert and treat water from Carmel River system in wet season; transport water via pipeline to inject in Seaside Groundwater Basin for later recovery in dry season.

 

ATTRIBUTE

ESTIMATES

NOTES and COMMENTS

 

YIELD (AFY)

1,000  (average year - estimated)

Yield would vary from negligible in extremely dry year to maximum of 2,900 AF in extremely wet year.

COST

 

 

$6.56 million – estimated cost for project facilities

 

Based on MPWMD actual costs for Water Project 1 and projected to Water Project 2 location. Costs include planning, design, permitting, engineering, construction and construction management.  Cal-Am and MPWMD staff and legal support not included.  Cal-Am site acquisition cost not included.

TIMELINE

 

2009 – began site exploratory drilling

2010 – drilled first full-scale test ASR well

2011 – complete facilities for first well operation

2013 – anticipated full project

Project site use request began in 2008; completed hydrogeologic exploration in 2009; drilled first full-scale test well in 2010; completed site acquisition (Cal-Am easement) in 2011; Cal-Am and MPWMD developed agreement for completion of first well in 2011, to enable compliance with SWRCB CDO condition.

PERMITS AND APPROVALS

*Federal, State, Regional, Local Jurisdictions

Required permits and authorizations for operation of first full-scale test well have been or will be acquired prior to planned operation in WY 2012 injection season.  Permits for all facilities and permanent operations not yet acquired.

Partial list of authorizing and permitting agencies:

 

NMFS, USEPA, SWRCB, CDFG, RWQCB, CDPH, MCDEH, MPUSD, FORA, City of Seaside

PROS AND CONS

 

 

*Benefits

 

 

*Reliable, known

technology;

*Technology has been proven in local setting;

*Project relies in part on existing water delivery infrastructure;

*Project cost.

 

*Provides environmental benefit to Carmel River system by reducing the volume of water extracted during low-flow summer periods when water extraction impacts are greatest;

*Provides offset to volume of unpermitted diversions from Cal-Am system under SWRCB orders;

*Provides ancillary benefits to Seaside Basin by seasonal increased storage volume in basin and improved water quality relative to native basin water.

*Drawbacks

 

 

*Project yield limited by Carmel River bypass flow requirements;

*Project requires ongoing operational and monitoring commitment requirements;

*Project requires multiple water treatment at diversion and recovery.

*Full project operations will require infrastructure costs.

 

*Little to no excess water may be available for diversion to storage in certain dry or extremely dry years;

*Project requires intensive operations management to ensure successful performance, including water quality considerations;

*Project is located near urbanized area with visual and sound sensitivity issues.

*Water injection and recovery in dry season limited due to Cal-Am infrastructure constraints.

 

 

 

Seaside Middle School ASR Site

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