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Shungopavi

PWS ID: 090400259 · Second Mesa, 09 86043

Shungopavi serves 1,756 people in Second Mesa, 09 using Groundwater water sources. It has 494 recorded EPA violations, including 96 health-based violations. No PFAS contamination was detected in UCMR5 testing.

Water Quality Snapshot: Shungopavi

Shungopavi is a native american-owned community water system that delivers drinking water to 1,756 residents in Second Mesa, 09 through 199 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 494 total violations for this system , of which 96 (19%) are health-based — meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 307 monitoring and reporting violations are on file. The most recent violation on record dates to 2025.

The most frequently cited contaminant at this system is Arsenic, recorded in 92 violations (MCL, health-based). This system has not yet been sampled under EPA's UCMR5 PFAS monitoring program, so no PFAS detection data is available here.

Across 09, EPA tracks 323 public water systems serving 555,721 people, with 48,296 cumulative violations and 3,354 health-based violations on record. About 97% of systems in the state carry at least one violation, and state-wide the average per system is 149.5 violations. Shungopavi's 494 violations sit above the 09 average. Statewide, 30 of 41 UCMR5-tested systems have reported PFAS detections (73.2%). All figures above are sourced directly from EPA SDWIS and UCMR5 public data releases and are updated as EPA publishes new reporting cycles.

Population Served
1,756
Total Violations
494
Health-Based Violations
96
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Native American
Connections
199
School/Daycare
No
MCL Violations
95
Monitoring Violations
307
Treatment Tech Violations
1

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Arsenic MCL 92 2023
Coliform (TCR) MR 52 2014
Arsenic MR 19 2023
Public Notice Other 9 2016
Nitrate MR 7 2023
Chlorine MR 6 2023
Total Haloacetic Acids (HAA5) MR 5 2022
Revised Total Coliform Rule MON 5 2025
BHC-GAMMA MR 4 2011
Methoxychlor MR 4 2011
Toxaphene MR 4 2011
Carbofuran MR 4 2011
Atrazine MR 4 2011
LASSO MR 4 2011
Heptachlor MR 4 2011
Heptachlor epoxide MR 4 2011
2,4-D MR 4 2011
2,4,5-TP MR 4 2011
Benzo(a)pyrene MR 4 2017
Pentachlorophenol MR 4 2011
1,2,4-Trichlorobenzene MR 4 2011
cis-1,2-Dichloroethylene MR 4 2011
Total Polychlorinated Biphenyls (PCB) MR 4 2011
1,2-DIBROMO-3-CHLOROPROPANE MR 4 2011
ETHYLENE DIBROMIDE MR 4 2011
Xylenes, Total MR 4 2011
Chlordane MR 4 2011
DICHLOROMETHANE MR 4 2011
o-Dichlorobenzene MR 4 2011
p-Dichlorobenzene MR 4 2011

Verify This Water System

The figures above are aggregated from EPA's public databases. To verify the underlying records — or to file a complaint, request a Consumer Confidence Report, or check current monitoring status — go directly to the federal and state regulators that enforce the Safe Drinking Water Act for Shungopavi.

Federal Source of Truth

EPA SDWIS — Federal Reports

EPA's Safe Drinking Water Information System (SDWIS) holds the federal compliance record for every regulated public water system. Open the system-level report by PWS ID:

View PWS ID 090400259 on SDWIS

Source: EPA SDWIS Federal Reports Search

State Regulator

09 Drinking Water Authority

09's primacy agency administers the Safe Drinking Water Act locally. Search EPA SDWIS for the current state contact, or use the state's public health or environment department portal.

Find 09 regulator via EPA SDWIS

Violation Timeline

Each row links to the EPA SDWIS public record for verification. Cross-reference the contaminant code on EPA's federal report to see violation dates, return-to-compliance status, and enforcement actions.

Year (latest) Contaminant Category Count EPA Record
2025 Revised Total Coliform Rule MON 5 SDWIS / 090400259 / 8000
2024 LEAD AND COPPER RULE REVISIONS RPT 4 SDWIS / 090400259 / 5200
2024 LEAD AND COPPER RULE REVISIONS TT 1 SDWIS / 090400259 / 5200
2023 Arsenic MCL 92 SDWIS / 090400259 / 1005
2023 Arsenic MR 19 SDWIS / 090400259 / 1005
2023 Nitrate MR 7 SDWIS / 090400259 / 1040
2023 Chlorine MR 6 SDWIS / 090400259 / 0999
2022 Total Haloacetic Acids (HAA5) MR 5 SDWIS / 090400259 / 2456
2022 TTHM MR 4 SDWIS / 090400259 / 2950
2021 Revised Total Coliform Rule RPT 1 SDWIS / 090400259 / 8000
2017 Benzo(a)pyrene MR 4 SDWIS / 090400259 / 2306
2017 Lead and Copper Rule MR 4 SDWIS / 090400259 / 5000
2016 Public Notice Other 9 SDWIS / 090400259 / 7500
2014 Coliform (TCR) MR 52 SDWIS / 090400259 / 3100
2011 BHC-GAMMA MR 4 SDWIS / 090400259 / 2010

How Shungopavi Compares

Cross-reference this system's record against state averages and the federal MCL framework for context.

Metric Shungopavi 09 avg Federal benchmark
Total violations 494 149.5 SDWA compliance — any non-zero count is a recorded breach
Health-based violations 96 10.4 Indicates a contaminant exceeded a federal MCL
PFAS detection None 73.2% EPA final rule (2024): PFOA/PFOS MCL = 4.0 ppt
Population served 1,756 1,720 Sizing context for compliance burden

Sources: EPA SDWIS and EPA National Primary Drinking Water Regulations (40 CFR Part 141). State averages computed across 323 regulated public water systems in 09.

Federal MCL reference — Safe Drinking Water Act thresholds ▼
Contaminant Federal MCL / Action Level Note
Lead 0 mg/L (Action Level: 0.015 mg/L) Lead and Copper Rule treatment technique
Arsenic 0.010 mg/L (10 ppb) Health-based MCL since 2006
Total Coliform Treatment technique (RTCR) Indicator organism, monitoring trigger
PFOA / PFOS (PFAS) 4.0 ppt each (final 2024 rule) Compliance deadline 2029
Nitrate (as N) 10 mg/L Acute health risk for infants

Frequently Asked Questions

Is Shungopavi water safe to drink? ▼
Shungopavi (PWS ID: 090400259) has 494 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 1,756 people using Groundwater sources.
How many people does Shungopavi serve? ▼
Shungopavi serves 1,756 people in Second Mesa, 09. It is a Native American-owned system using Groundwater water sources with 199 service connections.
What type of violations does Shungopavi have? ▼
Shungopavi has 494 total violations: 96 health-based violations (MCL exceedances or treatment failures), 307 monitoring/reporting violations, and 1 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Shungopavi water? ▼
No PFAS testing data is available for Shungopavi under the EPA's UCMR5 monitoring program.
What water source does Shungopavi use? ▼
Shungopavi uses Groundwater as its primary water source. It is classified as a Community Water System (CWS), serving residential populations year-round.
Where does this data come from? ▼
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.

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Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025. This data is provided for informational purposes only.

Read our methodology — how this data is sourced, computed, and verified.

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Data sourced from $official public datasets. See our methodology for details. Retrieved and formatted by PlainWater Editorial