PIERCE CITY OF

Q: Is PIERCE CITY OF water safe to drink?

PIERCE CITY OF (PWS ID: ID2180027) has 155 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 467 people using Surface Water sources.

Q: How many people does PIERCE CITY OF serve?

PIERCE CITY OF serves 467 people in PIERCE, Idaho. It is a Local-owned system using Surface Water water sources with 347 service connections.

Q: What type of violations does PIERCE CITY OF have?

PIERCE CITY OF has 155 total violations: 90 health-based violations (MCL exceedances or treatment failures), 57 monitoring/reporting violations, and 90 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.

Q: Has PFAS been detected in PIERCE CITY OF water?

No. PIERCE CITY OF was tested for PFAS under the EPA's UCMR5 monitoring program and no PFAS contamination was detected.

Q: What water source does PIERCE CITY OF use?

PIERCE CITY OF uses Surface Water as its primary water source. It is classified as a Community Water System (CWS), serving residential populations year-round.

Q: 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.

Reviewed byPlainWater Editorial, Drinking Water Quality Editorial Team · June 4, 2026

PWS ID: ID2180027 · PIERCE, Idaho 83546

PIERCE CITY OF serves 467 people in PIERCE, Idaho using Surface Water water sources. It has 155 recorded EPA violations, including 90 health-based violations. No PFAS contamination was detected in UCMR5 testing.

Water Quality Snapshot: PIERCE CITY OF

PIERCE CITY OF is a local-owned community water system that delivers drinking water to 467 residents in PIERCE, Idaho (Clearwater County) through 347 service connections. Its water is drawn from surface water sources. EPA's Safe Drinking Water Information System records 155 total violations for this system , of which 90 (58%) are health-based — meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 57 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 Surface Water Treatment Rule, recorded in 86 violations (TT, health-based). This system was sampled under EPA's UCMR5 PFAS monitoring program and no PFAS compounds were detected above the minimum reporting level.

Across Idaho, EPA tracks 2,005 public water systems serving 1,743,912 people, with 104,850 cumulative violations and 19,965 health-based violations on record. About 96% of systems in the state carry at least one violation, and state-wide the average per system is 52.3 violations. PIERCE CITY OF's 155 violations sit above the Idaho average. Statewide, 40 of 60 UCMR5-tested systems have reported PFAS detections (66.7%). 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

467

Total Violations

155

Health-Based Violations

Water Source

Surface Water

System Details

System Type: Community
Owner Type: Local
Connections: 347
County: Clearwater
School/Daycare: No
MCL Violations: 0
Monitoring Violations: 57
Treatment Tech Violations: 90

Violation History

Contaminant violations recorded by EPA.

Contaminant	Category	Count	Latest
Surface Water Treatment Rule	TT	86	2008
Surface Water Treatment Rule	MR	9	2023
Revised Total Coliform Rule	MON	6	2023
Chlorine	MR	6	2023
Interim Enhanced Surface Water Treatment Rule	MR	4	2021
CARBON, TOTAL	TT	4	2023
Fluoride	MR	3	2010
Barium	MR	2	2010
Chromium	MR	2	2010
Mercury	MR	2	2010
Antimony, Total	MR	2	2010
Thallium, Total	MR	2	2010
Cadmium	MR	2	2010
Nickel	MR	2	2010
Beryllium, Total	MR	2	2010
Selenium	MR	2	2010
CARBON, TOTAL	MR	2	2025
Lead and Copper Rule	MR	2	2024
Coliform (TCR)	MR	2	2015
Public Notice	Other	2	2010
TTHM	MR	1	2005
Arsenic	MR	1	2010
Nitrite	MR	1	2010
Total Haloacetic Acids (HAA5)	MR	1	2005
Gross Alpha, Excl. Radon and U	MR	1	1979

PFAS Testing Results (UCMR5)

Results from EPA's Fifth Unregulated Contaminant Monitoring Rule. 0 of 120 samples detected PFAS.

Contaminant	Date	Result	MRL	Status
9Cl-PF3ONS	7/24/2024	<0.002 µg/L	0.002 µg/L	Not Detected
6:2 FTS	7/24/2024	<0.005 µg/L	0.005 µg/L	Not Detected
PFBA	7/24/2024	<0.005 µg/L	0.005 µg/L	Not Detected
ADONA	7/24/2024	<0.003 µg/L	0.003 µg/L	Not Detected
PFMPA	7/24/2024	<0.004 µg/L	0.004 µg/L	Not Detected
11Cl-PF3OUdS	7/24/2024	<0.005 µg/L	0.005 µg/L	Not Detected
HFPO-DA	7/24/2024	<0.005 µg/L	0.005 µg/L	Not Detected
PFHxA	7/24/2024	<0.003 µg/L	0.003 µg/L	Not Detected
8:2 FTS	7/24/2024	<0.005 µg/L	0.005 µg/L	Not Detected
PFDoA	7/24/2024	<0.003 µg/L	0.003 µg/L	Not Detected
PFPeA	7/24/2024	<0.003 µg/L	0.003 µg/L	Not Detected
PFMBA	7/24/2024	<0.003 µg/L	0.003 µg/L	Not Detected
PFEESA	7/24/2024	<0.003 µg/L	0.003 µg/L	Not Detected
NFDHA	7/24/2024	<0.02 µg/L	0.02 µg/L	Not Detected
PFPeS	7/24/2024	<0.004 µg/L	0.004 µg/L	Not Detected
PFHpS	7/24/2024	<0.003 µg/L	0.003 µg/L	Not Detected
4:2 FTS	7/24/2024	<0.003 µg/L	0.003 µg/L	Not Detected
NMeFOSAA	7/24/2024	<0.006 µg/L	0.006 µg/L	Not Detected
lithium	7/24/2024	<9 µg/L	9 µg/L	Not Detected
PFTA	7/24/2024	<0.008 µg/L	0.008 µg/L	Not Detected
PFUnA	7/24/2024	<0.002 µg/L	0.002 µg/L	Not Detected
NEtFOSAA	7/24/2024	<0.005 µg/L	0.005 µg/L	Not Detected
PFBS	7/24/2024	<0.003 µg/L	0.003 µg/L	Not Detected
PFOA	7/24/2024	<0.004 µg/L	0.004 µg/L	Not Detected
PFHxS	7/24/2024	<0.003 µg/L	0.003 µg/L	Not Detected
PFDA	7/24/2024	<0.003 µg/L	0.003 µg/L	Not Detected
PFNA	7/24/2024	<0.004 µg/L	0.004 µg/L	Not Detected
PFOS	7/24/2024	<0.004 µg/L	0.004 µg/L	Not Detected
PFHpA	7/24/2024	<0.003 µg/L	0.003 µg/L	Not Detected
PFTrDA	7/24/2024	<0.007 µg/L	0.007 µg/L	Not Detected
PFTA	6/26/2024	<0.008 µg/L	0.008 µg/L	Not Detected
NEtFOSAA	6/26/2024	<0.005 µg/L	0.005 µg/L	Not Detected
NMeFOSAA	6/26/2024	<0.006 µg/L	0.006 µg/L	Not Detected
PFTrDA	6/26/2024	<0.007 µg/L	0.007 µg/L	Not Detected
9Cl-PF3ONS	4/24/2024	<0.002 µg/L	0.002 µg/L	Not Detected
8:2 FTS	4/24/2024	<0.005 µg/L	0.005 µg/L	Not Detected
PFBS	4/24/2024	<0.003 µg/L	0.003 µg/L	Not Detected
PFMPA	4/24/2024	<0.004 µg/L	0.004 µg/L	Not Detected
6:2 FTS	4/24/2024	<0.005 µg/L	0.005 µg/L	Not Detected
PFBA	4/24/2024	<0.005 µg/L	0.005 µg/L	Not Detected
HFPO-DA	4/24/2024	<0.005 µg/L	0.005 µg/L	Not Detected
ADONA	4/24/2024	<0.003 µg/L	0.003 µg/L	Not Detected
4:2 FTS	4/24/2024	<0.003 µg/L	0.003 µg/L	Not Detected
11Cl-PF3OUdS	4/24/2024	<0.005 µg/L	0.005 µg/L	Not Detected
PFHxA	4/24/2024	<0.003 µg/L	0.003 µg/L	Not Detected
PFDA	4/24/2024	<0.003 µg/L	0.003 µg/L	Not Detected
PFOA	4/24/2024	<0.004 µg/L	0.004 µg/L	Not Detected
PFOS	4/24/2024	<0.004 µg/L	0.004 µg/L	Not Detected
PFNA	4/24/2024	<0.004 µg/L	0.004 µg/L	Not Detected
PFHpA	4/24/2024	<0.003 µg/L	0.003 µg/L	Not Detected

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 PIERCE CITY OF.

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 ID2180027 on SDWIS

Source: EPA SDWIS Federal Reports Search

State Regulator

Idaho Drinking Water Authority

Idaho'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 ID 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	CARBON, TOTAL	MR	2	SDWIS / ID2180027 / 2920
2024	Lead and Copper Rule	MR	2	SDWIS / ID2180027 / 5000
2023	Surface Water Treatment Rule	MR	9	SDWIS / ID2180027 / 0200
2023	Revised Total Coliform Rule	MON	6	SDWIS / ID2180027 / 8000
2023	Chlorine	MR	6	SDWIS / ID2180027 / 0999
2023	CARBON, TOTAL	TT	4	SDWIS / ID2180027 / 2920
2021	Interim Enhanced Surface Water Treatment Rule	MR	4	SDWIS / ID2180027 / 0300
2015	Coliform (TCR)	MR	2	SDWIS / ID2180027 / 3100
2010	Fluoride	MR	3	SDWIS / ID2180027 / 1025
2010	Barium	MR	2	SDWIS / ID2180027 / 1010
2010	Chromium	MR	2	SDWIS / ID2180027 / 1020
2010	Mercury	MR	2	SDWIS / ID2180027 / 1035
2010	Antimony, Total	MR	2	SDWIS / ID2180027 / 1074
2010	Thallium, Total	MR	2	SDWIS / ID2180027 / 1085
2010	Cadmium	MR	2	SDWIS / ID2180027 / 1015

How PIERCE CITY OF Compares

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

Metric	PIERCE CITY OF	Idaho avg	Federal benchmark
Total violations	155	52.3	SDWA compliance — any non-zero count is a recorded breach
Health-based violations	90	10	Indicates a contaminant exceeded a federal MCL
PFAS detection	None	66.7%	EPA final rule (2024): PFOA/PFOS MCL = 4.0 ppt
Population served	467	870	Sizing context for compliance burden

Sources: EPA SDWIS and EPA National Primary Drinking Water Regulations (40 CFR Part 141). State averages computed across 2,005 regulated public water systems in Idaho.

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 PIERCE CITY OF water safe to drink? ▼

PIERCE CITY OF (PWS ID: ID2180027) has 155 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 467 people using Surface Water sources.

How many people does PIERCE CITY OF serve? ▼

PIERCE CITY OF serves 467 people in PIERCE, Idaho. It is a Local-owned system using Surface Water water sources with 347 service connections.

What type of violations does PIERCE CITY OF have? ▼

PIERCE CITY OF has 155 total violations: 90 health-based violations (MCL exceedances or treatment failures), 57 monitoring/reporting violations, and 90 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.

Has PFAS been detected in PIERCE CITY OF water? ▼

No. PIERCE CITY OF was tested for PFAS under the EPA's UCMR5 monitoring program and no PFAS contamination was detected.

What water source does PIERCE CITY OF use? ▼

PIERCE CITY OF uses Surface Water 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.

Explore PlainWater

Water in Idaho

All systems in state

All States

Water quality by state

Contaminants

PFAS & other pollutants

Guides

Understanding water quality

Related Data for Idaho

Environmental Data → Natural Hazards → Air Quality → Healthcare Access → Climate Data →

Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025. PFAS data from EPA UCMR5 monitoring program (2023-2025). This data is provided for informational purposes only.

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

Browse all → | Rankings →

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