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The City of San Diego contracted with Downstream Services and consulting firms to perform emergency sonar assessment and cleaning of five large diameter sewer siphons.

In 2019, the largest earthquake to hit California in over two decades caused major damage to the town

Long Beach Water Department Groundwater Treatment Plant Tank Replacement

Under a City of Ventura Storm Drain Maintenance contract, Downstream Services Stormwater Department discovered

Glen Ivy Hot Springs Flow Monitoring

The City of Manteca contracted with Downstream Services to repair 8,250 ft of 30-inch diameter