Title 22 CCR

§64400

Definitions (potable water, small water system, etc.)

Post-1976 → major 1996

Title 22 CCR

§64401

Applicability – full drinking-water standards apply only to public water systems (15+ connections)

1996

Title 22 CCR

§64409

Explicitly exempts small systems from full Title 22 monitoring/treatment requirements

1996

Title 22 CCR

§64212

Bacteriological monitoring for state small systems (5–14): quarterly + one repeat if positive

1996 → minor updates 2016

Title 22 CCR

§64213

Chemical/inorganic monitoring for small systems – initial source sampling only (voluntary for most)

1996

Title 22 CCR

§§64431–64432.2

Primary inorganic MCLs (nitrate, arsenic, etc.) – public systems only

1976 → multiple updates

Title 22 CCR

§64449

Secondary (aesthetic) standards – iron, manganese, TDS, etc. – public systems only

1976 → 1996