The California Integrated Water Quality System (CIWQS) is currently unavailable at this time while routine maintenance is conducted on the system. Generally, maintenance is scheduled from 7 am to 1 pm on the Monday after the first Friday of every-other month (starting in February), although there may be other occasions as well.

If you are seeing this message outside the routine maintenance hours, please try refreshing the page.

If you have questions please contact the CIWQS Help Center at:

E-mail: ciwqs@waterboards.ca.gov

Phone: 866-79-CIWQS (24977)
Monday through Friday (excluding State Holidays)
8:00 a.m. - 5:00 p.m.