Inland water agencies asking for rights to billions of gallons of future water expected to collect in the Santa Ana River and Seven Oaks Dam near Highland have been testifying before a state board.

Closing arguments are set for Tuesday in Sacramento before the state Water Resources Control Board, which will ultimately decide how the water is allocated, said Randy Van Gelder, general manager for the San Bernardino Municipal Water District.

It's expected that as the Inland Empire continues to grow in population, so will the amount of storm runoff and wastewater from new home and business development. Various water agencies are hoping to access that water to diminish the amount they would need to import from the Colorado River. Some want the water for agricultural use, others to replenish groundwater and drinking water supplies.

San Bernardino Municipal Water District and Western Municipal Water District of Riverside, for example, are hoping to divert water from the Seven Oaks Dam and Santa Ana River to store in groundwater basins to serve customers in San Bernardino and Riverside counties at future times, Van Gelder said.

Representatives from the San Bernardino Valley Municipal Water District, the Western Municipal Water District of Riverside County, the Chino Basin Watermaster and the Orange County Water District were among the agencies that submitted testimony last week.

Environmentalists also testified. They are concerned about the impact such water diversion would have on the various plant and wildlife species that thrive in the watershed that flows from Highland to the Orange County coastline.

"One of the things we're concerned about is every endangered species along that river is in a state of collapse or is imperiled," said Adam Keats, an attorney for the Center for Biological Diversity in San Francisco.

An increase in diversions of water from the Santa Ana River would be detrimental to at least 10 federally and state-licensed threatened and endangered species, including the Santa Ana sucker fish, the San Bernardino kangaroo rat and migratory songbirds such as the western yellow-billed cuckoo, the southwestern willow flycatcher, and the Least Bell's Vireo, according to testimony presented by Ileene Anderson, an ecologist with the Center for Biological Diversity.

To address the threat to the kangaroo rat and two plant species - the Santa Ana River woollystar and the slender-horned spineflower - the Army Corps of Engineers is putting together a multiple-species habitat management plan, said Jay Field, spokesman for the Army Corps of Engineers in Los Angeles.

That plan, he said, is still in the early stages. Options include directing and spreading the water into overbank areas that would provide the necessary hydrology for the plants and wildlife, much like controlled flooding.

In a policy statement submitted to the state board, Ontario public works director Kenneth Jeske voiced his support for the Chino Basin Watermaster's plan to divert a portion of storm water out of concrete channels and back into recharge basins, which would increase the yield of the basin and improve groundwater quality.

Testimony began Wednesday before a hearing officer. The five-member state board should make a decision as to how the water is allocated by the end of the year.


WANTING WATER

Representatives of water agencies throughout the Inland Empire and Orange County appeared before a state board last week to request rights to future water collected in the Santa Ana River and Seven Oaks Dam. They want the water to be diverted for agricultural use and to replenish groundwater and drinking water.