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