Question 1

Is Rocky Ridge Boarding School BIA water safe to drink?

Accepted Answer

Rocky Ridge Boarding School BIA (PWS ID: NN0433015) has 163 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. EPA SDWIS lists this system's service population as 250 people using Groundwater sources.

Question 2

How many people does Rocky Ridge Boarding School BIA serve?

Accepted Answer

EPA SDWIS reports that Rocky Ridge Boarding School BIA serves 250 people (this public water system's service population, not the municipal population of Kykotsmovi or any other city). It is a Federal-owned system using Groundwater water sources with 20 service connections. The operator address is listed in Kykotsmovi, Navajo Nation.

Question 3

What type of violations does Rocky Ridge Boarding School BIA have?

Accepted Answer

Rocky Ridge Boarding School BIA has 163 total violations: 3 health-based violations (MCL exceedances or treatment failures), 139 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.

Question 4

Has PFAS been detected in Rocky Ridge Boarding School BIA water?

Accepted Answer

No PFAS testing data is available for Rocky Ridge Boarding School BIA under the EPA's UCMR5 monitoring program.

Question 5

What water source does Rocky Ridge Boarding School BIA use?

Accepted Answer

Rocky Ridge Boarding School BIA 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

How does Rocky Ridge Boarding School BIA's violation count compare nationally?

Accepted Answer

Rocky Ridge Boarding School BIA has 163 recorded EPA SDWIS violations, fewer than 18% of the 29,740 public water systems serving 500 or more people nationwide (the same sitemap cohort used for the corpus-placement ranking above). 82% of that cohort has fewer violations than Rocky Ridge Boarding School BIA. 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
Nitrate	MR	7	2024
Nitrite	MR	7	2024
Coliform (TCR)	MR	7	2012
Revised Total Coliform Rule	MON	5	2023
Revised Total Coliform Rule	RPT	4	2024
Coliform (TCR)	MCL	3	2003
Methoxychlor	MR	2	2004
Dalapon	MR	2	2004
Diquat	MR	2	2004
Endothall	MR	2	2004
Glyphosate	MR	2	2004
OXAMYL	MR	2	2004
Dinoseb	MR	2	2004
Aldicarb	MR	2	2004
Atrazine	MR	2	2004
LASSO	MR	2	2004
2,3,7,8-TCDD	MR	2	2004
Heptachlor epoxide	MR	2	2004
Benzo(a)pyrene	MR	2	2004
Pentachlorophenol	MR	2	2004
1,2,4-Trichlorobenzene	MR	2	2004
cis-1,2-Dichloroethylene	MR	2	2004
Total Polychlorinated Biphenyls (PCB)	MR	2	2004
1,2-DIBROMO-3-CHLOROPROPANE	MR	2	2004
Xylenes, Total	MR	2	2004
o-Dichlorobenzene	MR	2	2004
1,2-Dichloroethane	MR	2	2004
Tetrachloroethylene	MR	2	2004
Benzene	MR	2	2004
Ethylbenzene	MR	2	2004

Rocky Ridge Boarding School BIA

Rocky Ridge Boarding School BIA standing, high SDWIS violation third

System Details

Violation History

Violation Count vs. the National Corpus

Population served record for Rocky Ridge Boarding School BIA

Nationwide peers

Cross-state systems with comparable violation load