General Contact Number: (530) 621-5567

Environmental Health

Policy for Closure of Natural Bathing Places
Policy #: 500-03
Issued: August 3, 1982
Effective: August 3, 1982

POLICY

To set a uniform procedure to be followed when a natural bathing place has been found to be unsafe.

PROCEDURE

If, during routine sampling of natural bathing places, a fecal coliform count of over 250 is found, a second sample shall be taken the following week. When two consecutive samples are over 250 fecal coliform, the bathing place shall be posted as follows:

WARNING! Contaminated Water May Be Hazardous to Your Health


If, during routine sampling of natural bathing places, a fecal coliform count of over 400 is found, the bathing place shall be posted as follows:

WARNING! Contaminated Water - Do Not Drink, Fish, Swim, or Wade in this Water

Weekly samples shall be taken of bathing places with coliform counts over 400. The source of the high contamination level shall be investigated and corrective action taken if possible.

When two consecutive samples are below 400 but above 250 fecal coliform, the posting shall be changed to the lesser warning. When two consecutive samples are below the 250 fecal coliform count, the warnings shall be removed.

Natural bathing places over 250 fecal coliform but under 400 fecal coliform shall not be sampled weekly after posting. Routine sampling shall continue.