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Source Capacity Testing

Published on . Last modified on March 2, 2017

Source Capacity Testing Requirements

All wells that are proposed to supply water for domestic use or to be connected to a water distribution system shall first undergo a continuous source-capacity (pumping) test to determine the yield of the well.  If you wish to use this test for a water system, new home, or a planning project such as a subdivision, the test shall be witnessed by the Drinking Water Protection Services. 

Test Procedures:

Mailing Address:
Drinking Water Protection Services-Well Program
1270 Natividad Rd
Salinas, CA 93906

Water Quality Testing Requirements

All new single connection domestic wells are required to have the following tests conducted  (See water system requirements for new water system well testing requirements):

  • Inorganic Chemical Analysis:  Aluminum, antimony, arsenic, asbestos, barium, beryllium, cadmium, chromium, chromium VI, cyanide, fluoride, mercury, nickel, nitrate (NO3), nitrite, (NO2), perchlorate, selenium, and thallium. Asbestos and cyanide may be waived if determined to not be vulnerable. 
  • Secondary Standards:  Total dissolved solids, specific conductance, chloride, sulfate, calcium, magnesium, potassium, sodium, iron, manganese, carbonate, bicarbonate, hydroxide alkalinity, total hardness, MBAS, copper, zinc, silver, color, odor, turbidity, pH.   MTBE and thiobencarb are also required, but may be waived if determined to not be vulnerable.
  • Coliform Bacteria Analysis

Tests must be conducted by a California Environmental Laboratory Accreditation Program Certified Laboratory.  

See a list of operators and laboratories here

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