Sewer Authority Mid-Coastside

The address on the plant’s EPA facility record is 1000 North Cabrillo Highway, Half Moon Bay, CA 94019, in San Mateo County. Its coordinates are 37.4731, -122.4447. For some plants the record holds the utility’s mailing address rather than the plant gate.

Sewer Authority Mid-Coastside is permitted for a design flow of 4 MGD. Its average daily flow is not available in the current EPA data.

Klarifi has identified 2 treatment structures and unit processes at the Half Moon Bay facility. The full treatment train, with exact unit counts, is shown in Klarifi with a free account.

The facility discharges under NPDES permit CA0038598, currently effective, expiring April 2028.

Discharge monitoring reports show 3 violations at Sewer Authority Mid-Coastside in the last three years, 1 of them effluent limit exceedances. The full history is available in Klarifi.

Sewer Authority Mid-Coastside is a publicly owned treatment works in Half Moon Bay, California. Klarifi lists decision-maker contacts for this facility, available with a free trial.