Table A-2. Alternatives Considered but
Eliminated from Detailed Study

Alternative

Description

Reasons for Elimination
New San Clemente Dam (Rock fill) Rock fill construction method used as "fall back" if roller - compacted concrete fails fall back not needed; also more expensive and time consuming
45,000-af New San Clemente Reservoir Joint use reservoir for MPWMD, Fort Ord, and Marina Rejected by Marina and Ford Ord because of cost; infeasible without their participation
154,000-af New San Clemente Reservoir Flood control, recreation, and water supply dam proposed by Corps Abandoned by Corps because of lack of community support; flood control and recreation not MPWMD project purposes
Upper Syndicate Dam (Cachagua) Analyzed by Corps in 1970s Rejected in favor of New San Clemente Dam by Corps in 1981; resource agency staff recommended against it in 1988 because of loss of highly valued riparian habitat
Lower Syndicate Dam (Pine Creek) Analyzed by Corps in 1970s Rejected in favor of New San Clemente Dam by Corps in 1981; would inundate homes and roads; resource agency staff recommended against it in 1988 because of loss of highly valued riparian habitat
Klondike Dam Analyzed by Corps in 1970s Rejected by Corps because of two active faults in reservoir area; would inundate expensive homes, roads, and water treatment facilities
New dam at existing Los Padres site Analyzed by Corps in 1970s Rejected by Corps because of Ventana Wilderness inundation; marginal site, need to demolish old dam, unreasonably high costs, and technical feasibility concerns
Buckeye Creek Dam 2,000-af offstream storage reservoir on Buckeye Creek; could divert water from San Clemente Dam or the Narrows Rejected because of technical problems, fault near toe of dam, left abutment formed entirely of landslide material, unsuitable foundation material, and water quality concerns
Fort Ord depressions Natural depressions and shallow valleys on Fort Ord Military Reservation (lined or unlined) could be used as small reservoirs or infiltration basins Rejected because of lack of availability (most sites are in military firing ranges), water quality and safety concerns from spent (or unspent) ammunition, high cost of line depressions, and questionable feasibility to recover infiltrated water
Seaside Coastal recharge—coastal barrier Reclaimed water or fresh water diverted from Carmel Valley injected into coastal basin could prevent seawater intrusion and allow greater pumping inland Rejected for technical reasons; tests conducted in 1981 indicated barrier recharge would not be successful
Recharge Seaside Coastal wells Recharge and recovery of water through existing and new wells; water would be diverted from Carmel Valley Rejected because of technical in feasibility; two sets of tests showed that recharge would not be successful at anticipated quantities
Seaside Inland well development Ground water development in the Seaside Inland Sub basin for use by MPWMD; most of the sub basin underlies Fort Ord Military Reservation Rejected because of questionable supply, lack of available well fields due to firing ranges on Fort Ord, and preemptive water rights; an exploratory program concluded that ground water production potential was poor
Upper Carmel Valley well development Construction of new or enlarged Cal-Am wells in upper Carmel Valley aquifer MPWMD Board of Directors adopted a policy not to pursue additional well development in this environmentally sensitive area
Lower Carmel Valley well development Construction of new or enlarged Cal-Am wells in lower Carmel Valley aquifer Only limited well development is feasible because fisheries and riparian habitat have been degraded by existing practices (Note: Additional treatment/pumping capacity could be required by California Department of Health Services to meet maximum day [peak] demand as community demand increases); water rights are questionable
Importation— Arroyo Seco Build large dam in southern Monterey County; provide water through a 56-mile canal to the Monterey Peninsula Monterey County Board of Supervisors abandoned project in 1983; a 1990 County study also recommended that it not be pursued
Importation— Lower Salinas Basin Build a small diversion dam near Salinas, transmit water to small regulating reservoirs, and drill a dispersed well field near Salinas Monterey Peninsula is not eligible for this water because of funding zone limitations and lack of riparian rights; project not designed with the peninsula in mind
Importation—San Felipe project Purchase water from Pajaro Valley area; source would be San Luis Reservoir Rejected because of lack of available water due to other agencies’ prior water rights, high costs for 30-mile pipeline, and the need to build a storage reservoir because only off-peak supply would be considered
Importation—Big and Little Sur Rivers Construction of dams on these rivers, as well as pipelines to transmit water Rejected because both rivers are protected by the state; both rivers are also being considered for federal protection
Reclamation for ground water recharge Inject treated waste water into Seaside Coastal sub basin to increase extraction potential from this area Rejected because of long-term health concerns and reluctance of state and county health departments to issue permits for projects of this type
Reclamation for turf irrigation near Old Monterey Plant* Apply treated waste water to irrigate turf at the Naval Postgraduate School and the Old Del Monte Golf Course Rejected because of the tenuous nature of the facilities and economic feasibility (treatment plant was scheduled for demolition; suit settlement with nearby homeowners entails treatment plant shutdown once regional system is operational); cost prohibitive unless Navy participates, but Navy has drilled its own sub potable wells
Cisterns (residential and institutional) Construction of cisterns for all residences and large commercial or institutional buildings Not practicable as a district wide program because of high cost per acre-foot and marginal benefits; MPWMD does support and provide information on cisterns to interested members of the public (voluntary)


* Reclamation in Pebble Beach was part of all projects analyzed in the NLP EIR.

Source: MPWMD 1994a.