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NPS ANNIE SPRINGS

PWS ID: OR4101080 · CRATER LAKE, Oregon 97604

NPS ANNIE SPRINGS serves 200 people in CRATER LAKE, Oregon using Groundwater water sources. It has 135 recorded EPA violations, including 0 health-based violations. No PFAS contamination was detected in UCMR5 testing.

Water Quality Snapshot: NPS ANNIE SPRINGS

NPS ANNIE SPRINGS is a federal-owned community water system that delivers drinking water to 200 residents in CRATER LAKE, Oregon (Klamath County) through 245 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 135 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 126 monitoring and reporting violations are on file. The most recent violation on record dates to 2023.

The most frequently cited contaminant at this system is Nitrate, recorded in 5 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 Oregon, EPA tracks 2,518 public water systems serving 4,005,242 people, with 206,659 cumulative violations and 20,339 health-based violations on record. About 99% of systems in the state carry at least one violation, and state-wide the average per system is 82.1 violations. NPS ANNIE SPRINGS's 135 violations sit above the Oregon average. Statewide, 30 of 125 UCMR5-tested systems have reported PFAS detections (24%). 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
200
Total Violations
135
Health-Based Violations
0
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Federal
Connections
245
County
Klamath
School/Daycare
No
MCL Violations
0
Monitoring Violations
126
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Nitrate MR 5 2005
Consumer Confidence Rule Other 4 2023
Lead and Copper Rule MR 4 2010
cis-1,2-Dichloroethylene MR 2 2002
Ethylbenzene MR 2 2002
CHLOROBENZENE MR 2 2002
p-Dichlorobenzene MR 2 2002
Tetrachloroethylene MR 2 2002
Toluene MR 2 2002
trans-1,2-Dichloroethylene MR 2 2002
Trichloroethylene MR 2 2002
Vinyl chloride MR 2 2002
LASSO MR 2 2002
Atrazine MR 2 2002
Chlordane MR 2 2002
Dalapon MR 2 2002
ETHYLENE DIBROMIDE MR 2 2002
Glyphosate MR 2 2002
Heptachlor epoxide MR 2 2002
Methoxychlor MR 2 2002
Pentachlorophenol MR 2 2002
Di(2-ethylhexyl) phthalate MR 2 2002
Picloram MR 2 2002
Arsenic MR 2 2002
Gross Alpha, Excl. Radon and U MR 2 1996
o-Dichlorobenzene MR 2 2002
1,1-Dichloroethylene MR 2 2002
1,1,1-Trichloroethane MR 2 2002
Carbon tetrachloride MR 2 2002
1,2-Dichloropropane MR 2 2002

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 NPS ANNIE SPRINGS.

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 OR4101080 on SDWIS

Source: EPA SDWIS Federal Reports Search

State Regulator

Oregon Drinking Water Authority

Oregon'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 OR 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
2023 Consumer Confidence Rule Other 4 SDWIS / OR4101080 / 7000
2021 COLIPHAGE MR 1 SDWIS / OR4101080 / 3028
2019 Revised Total Coliform Rule MON 1 SDWIS / OR4101080 / 8000
2010 Lead and Copper Rule MR 4 SDWIS / OR4101080 / 5000
2010 E. COLI MR 2 SDWIS / OR4101080 / 3014
2008 Total Haloacetic Acids (HAA5) MR 2 SDWIS / OR4101080 / 2456
2008 TTHM MR 2 SDWIS / OR4101080 / 2950
2005 Nitrate MR 5 SDWIS / OR4101080 / 1040
2002 cis-1,2-Dichloroethylene MR 2 SDWIS / OR4101080 / 2380
2002 Ethylbenzene MR 2 SDWIS / OR4101080 / 2992
2002 CHLOROBENZENE MR 2 SDWIS / OR4101080 / 2989
2002 p-Dichlorobenzene MR 2 SDWIS / OR4101080 / 2969
2002 Tetrachloroethylene MR 2 SDWIS / OR4101080 / 2987
2002 Toluene MR 2 SDWIS / OR4101080 / 2991
2002 trans-1,2-Dichloroethylene MR 2 SDWIS / OR4101080 / 2979

How NPS ANNIE SPRINGS Compares

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

Metric NPS ANNIE SPRINGS Oregon avg Federal benchmark
Total violations 135 82.1 SDWA compliance — any non-zero count is a recorded breach
Health-based violations 0 8.1 Indicates a contaminant exceeded a federal MCL
PFAS detection None 24% EPA final rule (2024): PFOA/PFOS MCL = 4.0 ppt
Population served 200 1,591 Sizing context for compliance burden

Sources: EPA SDWIS and EPA National Primary Drinking Water Regulations (40 CFR Part 141). State averages computed across 2,518 regulated public water systems in Oregon.

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 NPS ANNIE SPRINGS water safe to drink? ▼
NPS ANNIE SPRINGS (PWS ID: OR4101080) has 135 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 200 people using Groundwater sources.
How many people does NPS ANNIE SPRINGS serve? ▼
NPS ANNIE SPRINGS serves 200 people in CRATER LAKE, Oregon. It is a Federal-owned system using Groundwater water sources with 245 service connections.
What type of violations does NPS ANNIE SPRINGS have? ▼
NPS ANNIE SPRINGS has 135 total violations: 0 health-based violations (MCL exceedances or treatment failures), 126 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in NPS ANNIE SPRINGS water? ▼
No PFAS testing data is available for NPS ANNIE SPRINGS under the EPA's UCMR5 monitoring program.
What water source does NPS ANNIE SPRINGS use? ▼
NPS ANNIE SPRINGS 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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