A Boil Water Order has been issued for Louis Stelzer County Park near Wildcat Canyon Road in Lakeside.
San Diego Health Department officials issued the order, effective immediately, after officials found trace amounts of Total Coliform bacteria in the water.
Total coliform is a bacterium found in soil and in animal waste.
The water serves a ranger station, volunteer pad, drinking fountains and public restrooms.
The boiling order will continue until the distribution system has been disinfected and no other samples are found the bacteria in the water supply.