Question 1

Is BIA Keams Canyon water safe to drink?

Accepted Answer

BIA Keams Canyon (PWS ID: 090400054) has 297 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. EPA SDWIS lists this system's service population as 925 people using Groundwater sources.

Question 2

How many people does BIA Keams Canyon serve?

Accepted Answer

EPA SDWIS reports that BIA Keams Canyon serves 925 people (this public water system's service population, not the municipal population of Keams Canyon or any other city). It is a Federal-owned system using Groundwater water sources with 202 service connections. The operator address is listed in Keams Canyon, EPA Region 9 — Tribal Water Systems.

Question 3

What type of violations does BIA Keams Canyon have?

Accepted Answer

BIA Keams Canyon has 297 total violations: 63 health-based violations (MCL exceedances or treatment failures), 173 monitoring/reporting violations, and 5 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.

Question 4

Has PFAS been detected in BIA Keams Canyon water?

Accepted Answer

No PFAS testing data is available for BIA Keams Canyon under the EPA's UCMR5 monitoring program.

Question 5

What water source does BIA Keams Canyon use?

Accepted Answer

BIA Keams Canyon uses Groundwater as its primary water source. It is classified as a Community Water System (CWS), serving residential populations year-round.

Question 6

Where does this data come from?

Accepted Answer

All data comes from the EPA Safe Drinking Water Information System (SDWIS) and the UCMR5 PFAS monitoring program. SDWIS tracks compliance for all public water systems regulated under the Safe Drinking Water Act.

Question 7

Where does BIA Keams Canyon sit among U.S. public water systems?

Accepted Answer

According to EPA SDWIS population_served among sitemap-advertised systems (serving 500+), BIA Keams Canyon ranks #20,675 of 29,740 by people served, and #98 of 129 in EPA Region 9 — Tribal Water Systems. Ordinals use population_served DESC among systems serving 500+ (the sitemap cohort). See /methodology#corpus-placement.

Question 8

How does BIA Keams Canyon's violation count compare nationally?

Accepted Answer

BIA Keams Canyon has 297 recorded EPA SDWIS violations, fewer than 9% of the 29,740 public water systems serving 500 or more people nationwide (the same sitemap cohort used for the corpus-placement ranking above). 91% of that cohort has fewer violations than BIA Keams Canyon. A system can have zero recorded violations and still be actively monitored, and a high violation count often reflects a system that reports thoroughly, not necessarily one with worse water.

Contaminant	Category	Count	Latest
Coliform (TCR)	MR	59	2010
Arsenic	MCL	53	2012
Arsenic	MR	23	2011
Nitrate	MR	6	2009
Coliform (TCR)	MCL	5	2010
TTHM	MR	5	2010
Consumer Confidence Rule	Other	5	2005
Lead and Copper Rule	MR	4	2016
LEAD AND COPPER RULE REVISIONS	TT	4	2024
2,3,7,8-TCDD	MR	3	2008
Total Haloacetic Acids (HAA5)	MR	3	2008
Toxaphene	MR	2	2008
Diquat	MR	2	2008
Endothall	MR	2	2008
Carbofuran	MR	2	2008
Chlordane	MR	2	2008
E. COLI	MR	2	2010
OXAMYL	MR	2	2008
Total Polychlorinated Biphenyls (PCB)	MR	2	2008
Barium	MR	1	2001
Mercury	MR	1	2001
Antimony, Total	MR	1	2001
Methoxychlor	MR	1	2001
Endrin	MR	1	2001
Dalapon	MR	1	2001
Di(2-ethylhexyl) adipate	MR	1	2001
Glyphosate	MR	1	2001
Simazine	MR	1	2001
Picloram	MR	1	2001
Hexachlorocyclopentadiene	MR	1	2001

BIA Keams Canyon

BIA Keams Canyon standing, high SDWIS violation third

System Details

Violation History

Violation Count vs. the National Corpus

Population served record for BIA Keams Canyon

Nationwide peers

Cross-state systems with comparable violation load

Cross-state systems with smaller service footprints