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LOWER ELWHA VALLEY

PWS ID: 105300087 · PORT ANGELES, 10 98363

LOWER ELWHA VALLEY serves 511 people in PORT ANGELES, 10 using Groundwater water sources. It has 76 recorded EPA violations, including 0 health-based violations. No PFAS contamination was detected in UCMR5 testing.

Water Quality Snapshot: LOWER ELWHA VALLEY

LOWER ELWHA VALLEY is a native american-owned community water system that delivers drinking water to 511 residents in PORT ANGELES, 10 through 174 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 76 total violations for this system , of which 0 (0%) are health-based — meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 67 monitoring and reporting violations are on file. The most recent violation on record dates to 2020.

The most frequently cited contaminant at this system is Coliform (TCR), recorded in 14 violations (MR). This system has not yet been sampled under EPA's UCMR5 PFAS monitoring program, so no PFAS detection data is available here.

Across 10, EPA tracks 158 public water systems serving 142,574 people, with 31,953 cumulative violations and 1,055 health-based violations on record. About 98% of systems in the state carry at least one violation, and state-wide the average per system is 202.2 violations. LOWER ELWHA VALLEY's 76 violations sit below the 10 average. Statewide, 2 of 10 UCMR5-tested systems have reported PFAS detections (20%). 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
511
Total Violations
76
Health-Based Violations
0
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Native American
Connections
174
School/Daycare
No
MCL Violations
0
Monitoring Violations
67
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Coliform (TCR) MR 14 2013
Consumer Confidence Rule Other 7 2014
Lead and Copper Rule MR 3 2016
1,2-DIBROMO-3-CHLOROPROPANE MR 2 2008
ETHYLENE DIBROMIDE MR 2 2008
TTHM MR 2 2014
Glyphosate MR 2 2008
Endothall MR 2 2008
Combined Uranium MR 2 2020
Chlorine MR 2 2013
Diquat MR 2 2008
Gross Alpha, Excl. Radon and U MR 2 2020
Combined Radium (-226 and -228) MR 2 2020
Total Haloacetic Acids (HAA5) MR 2 2014
2,3,7,8-TCDD MR 2 2008
Di(2-ethylhexyl) phthalate MR 1 2005
Endrin MR 1 2005
OXAMYL MR 1 2005
Picloram MR 1 2005
Hexachlorocyclopentadiene MR 1 2005
LASSO MR 1 2005
Heptachlor epoxide MR 1 2005
2,4,5-TP MR 1 2005
Total Polychlorinated Biphenyls (PCB) MR 1 2005
Chlordane MR 1 2005
Nitrate MR 1 2006
Toxaphene MR 1 2005
Dalapon MR 1 2005
Di(2-ethylhexyl) adipate MR 1 2005
Dinoseb MR 1 2005

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 LOWER ELWHA VALLEY.

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 105300087 on SDWIS

Source: EPA SDWIS Federal Reports Search

State Regulator

10 Drinking Water Authority

10'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 10 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
2020 Combined Uranium MR 2 SDWIS / 105300087 / 4006
2020 Gross Alpha, Excl. Radon and U MR 2 SDWIS / 105300087 / 4000
2020 Combined Radium (-226 and -228) MR 2 SDWIS / 105300087 / 4010
2016 Lead and Copper Rule MR 3 SDWIS / 105300087 / 5000
2014 Consumer Confidence Rule Other 7 SDWIS / 105300087 / 7000
2014 TTHM MR 2 SDWIS / 105300087 / 2950
2014 Total Haloacetic Acids (HAA5) MR 2 SDWIS / 105300087 / 2456
2013 Coliform (TCR) MR 14 SDWIS / 105300087 / 3100
2013 Chlorine MR 2 SDWIS / 105300087 / 0999
2008 1,2-DIBROMO-3-CHLOROPROPANE MR 2 SDWIS / 105300087 / 2931
2008 ETHYLENE DIBROMIDE MR 2 SDWIS / 105300087 / 2946
2008 Glyphosate MR 2 SDWIS / 105300087 / 2034
2008 Endothall MR 2 SDWIS / 105300087 / 2033
2008 Diquat MR 2 SDWIS / 105300087 / 2032
2008 2,3,7,8-TCDD MR 2 SDWIS / 105300087 / 2063

How LOWER ELWHA VALLEY Compares

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

Metric LOWER ELWHA VALLEY 10 avg Federal benchmark
Total violations 76 202.2 SDWA compliance — any non-zero count is a recorded breach
Health-based violations 0 6.7 Indicates a contaminant exceeded a federal MCL
PFAS detection None 20% EPA final rule (2024): PFOA/PFOS MCL = 4.0 ppt
Population served 511 902 Sizing context for compliance burden

Sources: EPA SDWIS and EPA National Primary Drinking Water Regulations (40 CFR Part 141). State averages computed across 158 regulated public water systems in 10.

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 LOWER ELWHA VALLEY water safe to drink? ▼
LOWER ELWHA VALLEY (PWS ID: 105300087) has 76 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 511 people using Groundwater sources.
How many people does LOWER ELWHA VALLEY serve? ▼
LOWER ELWHA VALLEY serves 511 people in PORT ANGELES, 10. It is a Native American-owned system using Groundwater water sources with 174 service connections.
What type of violations does LOWER ELWHA VALLEY have? ▼
LOWER ELWHA VALLEY has 76 total violations: 0 health-based violations (MCL exceedances or treatment failures), 67 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in LOWER ELWHA VALLEY water? ▼
No PFAS testing data is available for LOWER ELWHA VALLEY under the EPA's UCMR5 monitoring program.
What water source does LOWER ELWHA VALLEY use? ▼
LOWER ELWHA VALLEY 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