Costilla County, Colorado Water Systems

Costilla County, Colorado

10 community water systems on record — 8 active, 2 inactive.

Every active community water system nationwide must produce a Consumer Confidence Report under the EPA's revised rule, effective for reports due July 1, 2027.

Data sourced from the EPA ECHO database (SDWA bulk download), last refreshed July 4, 2026. This is a record-keeping and public-information tool — it does not replace Colorado’s official records. Always confirm current status with Colorado before making decisions based on this information.

Community water systems in Costilla County, Colorado

System name	City	Population served	Status
BLANCA TOWN OF	BLANCA	469	Active
COLO AGGREGATE/MESITA OFF/MWCA	ALAMOSA	25	Inactive
COSTILLA COUNTY WS	SAN LUIS	561	Active
FT GARLAND WSD	FT GARLAND	477	Active
GARCIA DOMESTIC WUA	GARCIA	100	Active
LAKE SANCHEZ ESTATES	ALAMOSA	34	Active
SAN ACACIO DOMESTIC WA	SAN LUIS	40	Active
SAN ACACIO WTR USERS ASSN	SAN ACACIO	28	Inactive
SAN LUIS WSD	SAN LUIS	629	Active
VIEJO SAN ACACIO	SAN LUIS	45	Active