GRIC Blackwater Water System

Inactive system

This water system is marked inactive in EPA’s federal records as of January 1, 2000. It is no longer an operating public water system under this PWSID, and no compliance deadlines — including the 2027 Consumer Confidence Report rule — apply to it.

If you are a resident looking for your current water provider, see water systems in 09.

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 EPA Region 9’s official records. Always confirm current status with EPA Region 9 before making decisions based on this information.

System facts

System ID (PWSID): 090400091
System type: Community Water System
Population served: 25
Service connections: 1
Ownership: Native American tribal
Water source: groundwater (wells)

Violation history

Monitoring, Regular
—
Chromium
January 1, 1996 – December 31, 1996
Archived
Monitoring, Regular
—
Arsenic
January 1, 1996 – December 31, 1996
Archived
Monitoring, Regular
—
Selenium
January 1, 1996 – December 31, 1996
Archived
Monitoring, Regular
—
Barium
January 1, 1996 – December 31, 1996
Archived
Monitoring, Regular
—
Mercury
January 1, 1996 – December 31, 1996
Archived
Monitoring, Regular
—
Cadmium
January 1, 1996 – December 31, 1996
Archived
Monitoring, Regular
—
Fluoride
January 1, 1996 – December 31, 1996
Archived
Monitoring, Repeat Minor (TCR)
—
Coliform (TCR)
June 1, 1995 – June 30, 1995
Archived
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
June 1, 1995 – June 30, 1995
Archived
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
May 1, 1995 – May 31, 1995
Archived
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
April 1, 1994 – April 30, 1994
Archived
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
January 1, 1994 – January 31, 1994
Archived
Monitoring, Regular
—
Selenium
January 1, 1993 – December 31, 1995
Archived
Monitoring, Regular
—
Barium
January 1, 1993 – December 31, 1995
Archived
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
January 1, 1993 – January 31, 1993
Archived
Monitoring, Regular
—
Arsenic
January 1, 1993 – December 31, 1995
Archived
Monitoring, Regular
—
Fluoride
January 1, 1993 – December 31, 1995
Archived
Monitoring, Regular
—
Mercury
January 1, 1993 – December 31, 1995
Archived
Monitoring, Regular
—
Cadmium
January 1, 1993 – December 31, 1995
Archived
Monitoring, Regular
—
Chromium
January 1, 1993 – December 31, 1995
Archived
Monitoring, Routine Minor (TCR)
—
Coliform (TCR)
July 1, 1992 – July 31, 1992
Archived
Maximum Contaminant Level Violation, Acute (TCR)
Health-based
Coliform (TCR)
January 1, 1992 – January 31, 1992
Archived
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
August 1, 1991 – August 31, 1991
Archived

Archived closed in EPA's records (typically due to age or a data correction)

Period	Violation	Contaminant / rule	Health-based	Status
January 1, 1996 – December 31, 1996	Monitoring, Regular	Chromium	—	Archived
January 1, 1996 – December 31, 1996	Monitoring, Regular	Arsenic	—	Archived
January 1, 1996 – December 31, 1996	Monitoring, Regular	Selenium	—	Archived
January 1, 1996 – December 31, 1996	Monitoring, Regular	Barium	—	Archived
January 1, 1996 – December 31, 1996	Monitoring, Regular	Mercury	—	Archived
January 1, 1996 – December 31, 1996	Monitoring, Regular	Cadmium	—	Archived
January 1, 1996 – December 31, 1996	Monitoring, Regular	Fluoride	—	Archived
June 1, 1995 – June 30, 1995	Monitoring, Repeat Minor (TCR)	Coliform (TCR)	—	Archived
June 1, 1995 – June 30, 1995	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Archived
May 1, 1995 – May 31, 1995	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Archived
April 1, 1994 – April 30, 1994	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Archived
January 1, 1994 – January 31, 1994	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Archived
January 1, 1993 – December 31, 1995	Monitoring, Regular	Selenium	—	Archived
January 1, 1993 – December 31, 1995	Monitoring, Regular	Barium	—	Archived
January 1, 1993 – January 31, 1993	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Archived
January 1, 1993 – December 31, 1995	Monitoring, Regular	Arsenic	—	Archived
January 1, 1993 – December 31, 1995	Monitoring, Regular	Fluoride	—	Archived
January 1, 1993 – December 31, 1995	Monitoring, Regular	Mercury	—	Archived
January 1, 1993 – December 31, 1995	Monitoring, Regular	Cadmium	—	Archived
January 1, 1993 – December 31, 1995	Monitoring, Regular	Chromium	—	Archived
July 1, 1992 – July 31, 1992	Monitoring, Routine Minor (TCR)	Coliform (TCR)	—	Archived
January 1, 1992 – January 31, 1992	Maximum Contaminant Level Violation, Acute (TCR)	Coliform (TCR)	Health-based	Archived
August 1, 1991 – August 31, 1991	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Archived

Archived closed in EPA's records (typically due to age or a data correction)

Enforcement actions

August 17, 2005Federal Technical Assistance Visitgeneral compliance action — not tied to a specific violation on record
August 10, 2005Federal Technical Assistance Visitgeneral compliance action — not tied to a specific violation on record
August 8, 2005Federal Technical Assistance Visitgeneral compliance action — not tied to a specific violation on record
August 4, 2005Federal Technical Assistance Visitgeneral compliance action — not tied to a specific violation on record
July 12, 2005Federal Technical Assistance Visitgeneral compliance action — not tied to a specific violation on record

Last known contact on file (system is inactive)

Not on record

Phone not on record