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Chapter 4.68 — WELLS

7.5 gallons per minute for four consecutive hours with 3,750 gallons of emergency…

San Mateo County Municipal Code · 2026-09 edition · updated 2026-09-27 · San Mateo County

dwelling units.

(C)

Ten gallons per minute for four consecutive hours with 5,000 gallons of emergency storage for four dwelling units.

(4)

For all vertical wells in the Midcoast, said term shall also mean a well in which the water level within the well casing recovers to 80%, or greater, of the hydrostatic level, as determined by a California Registered Geologist, immediately following the completion of the pumping test. Recovery time shall be equal to the time taken to perform the pumping test, but not less than four hours.

(5)

For a horizontal well or spring serving a single family dwelling, said term shall mean a well or spring that produces a minimum flow of 2.5 gallons per minute with minimum storage of 1,250 gallons after 30 days of observation or if done in the dry period, August 1 through November 30, 1.5 gallons per minute for a thirty- day observation period and 2,000 gallons of storage.

(6)

In the Midcoast, all pumping tests shall be performed by, or under the supervision of, a California Registered Geologist or Registered Civil Engineer, and certified by signature of the same.

(7)

For nonresidential uses, such term shall mean an amount of water determined by the County Health Officer in accordance with the Uniform Plumbing Code and water quality standards issued by the California Department of Health Services.

(Ord. 4023, 01/30/01; Ord. 4128, 08/20/02)

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