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TEMPO LAKE WATER CO

PWS ID: WA5387375 · Port Orchard, Washington 98366

TEMPO LAKE WATER CO serves 246 people in Port Orchard, Washington using Groundwater water sources. It has 3,044 recorded EPA violations, including 23 health-based violations. No PFAS contamination was detected in UCMR5 testing.

Water Quality Snapshot: TEMPO LAKE WATER CO

TEMPO LAKE WATER CO is a private-owned community water system that delivers drinking water to 246 residents in Port Orchard, Washington (Thurston County) through 99 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 3,044 total violations for this system , of which 23 (1%) are health-based — meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 3,017 monitoring and reporting violations are on file. The most recent violation on record dates to 2018.

The most frequently cited contaminant at this system is cis-1,2-Dichloroethylene, recorded in 102 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 Washington, EPA tracks 4,557 public water systems serving 9,736,844 people, with 314,648 cumulative violations and 20,590 health-based violations on record. About 92% of systems in the state carry at least one violation, and state-wide the average per system is 69 violations. TEMPO LAKE WATER CO's 3,044 violations sit above the Washington average. Statewide, 98 of 247 UCMR5-tested systems have reported PFAS detections (39.7%). 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
246
Total Violations
3,044
Health-Based Violations
23
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Private
Connections
99
County
Thurston
School/Daycare
No
MCL Violations
23
Monitoring Violations
3,017
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
cis-1,2-Dichloroethylene MR 102 2007
DICHLOROMETHANE MR 102 2007
o-Dichlorobenzene MR 102 2007
p-Dichlorobenzene MR 102 2007
Vinyl chloride MR 102 2007
1,1-Dichloroethylene MR 102 2007
trans-1,2-Dichloroethylene MR 102 2007
1,2-Dichloroethane MR 102 2007
1,1,1-Trichloroethane MR 102 2007
Carbon tetrachloride MR 102 2007
1,2-Dichloropropane MR 102 2007
Trichloroethylene MR 102 2007
1,1,2-Trichloroethane MR 102 2007
Tetrachloroethylene MR 102 2007
CHLOROBENZENE MR 102 2007
Benzene MR 102 2007
1,2,4-Trichlorobenzene MR 102 2007
Ethylbenzene MR 102 2007
Styrene MR 102 2007
Toluene MR 102 2007
1,2-DIBROMO-3-CHLOROPROPANE MR 54 2006
ETHYLENE DIBROMIDE MR 54 2006
Pentachlorophenol MR 40 2006
Endrin MR 33 2006
Methoxychlor MR 33 2006
Toxaphene MR 33 2006
Hexachlorocyclopentadiene MR 33 2006
Atrazine MR 33 2006
LASSO MR 33 2006
Heptachlor MR 33 2006

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 TEMPO LAKE WATER CO.

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 WA5387375 on SDWIS

Source: EPA SDWIS Federal Reports Search

State Regulator

Washington Drinking Water Authority

Washington State Department of Health — Office of Drinking Water is the primacy agency that licenses and inspects TEMPO LAKE WATER CO under EPA-delegated authority.

Open WA regulator portal

Source: Washington State Department of Health — Office of Drinking Water

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
2018 Revised Total Coliform Rule MON 1 SDWIS / WA5387375 / 8000
2012 Arsenic MCL 16 SDWIS / WA5387375 / 1005
2010 Arsenic MR 2 SDWIS / WA5387375 / 1005
2007 cis-1,2-Dichloroethylene MR 102 SDWIS / WA5387375 / 2380
2007 DICHLOROMETHANE MR 102 SDWIS / WA5387375 / 2964
2007 o-Dichlorobenzene MR 102 SDWIS / WA5387375 / 2968
2007 p-Dichlorobenzene MR 102 SDWIS / WA5387375 / 2969
2007 Vinyl chloride MR 102 SDWIS / WA5387375 / 2976
2007 1,1-Dichloroethylene MR 102 SDWIS / WA5387375 / 2977
2007 trans-1,2-Dichloroethylene MR 102 SDWIS / WA5387375 / 2979
2007 1,2-Dichloroethane MR 102 SDWIS / WA5387375 / 2980
2007 1,1,1-Trichloroethane MR 102 SDWIS / WA5387375 / 2981
2007 Carbon tetrachloride MR 102 SDWIS / WA5387375 / 2982
2007 1,2-Dichloropropane MR 102 SDWIS / WA5387375 / 2983
2007 Trichloroethylene MR 102 SDWIS / WA5387375 / 2984

How TEMPO LAKE WATER CO Compares

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

Metric TEMPO LAKE WATER CO Washington avg Federal benchmark
Total violations 3,044 69 SDWA compliance — any non-zero count is a recorded breach
Health-based violations 23 4.5 Indicates a contaminant exceeded a federal MCL
PFAS detection None 39.7% EPA final rule (2024): PFOA/PFOS MCL = 4.0 ppt
Population served 246 2,137 Sizing context for compliance burden

Sources: EPA SDWIS and EPA National Primary Drinking Water Regulations (40 CFR Part 141). State averages computed across 4,557 regulated public water systems in Washington.

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 TEMPO LAKE WATER CO water safe to drink? ▼
TEMPO LAKE WATER CO (PWS ID: WA5387375) has 3044 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 246 people using Groundwater sources.
How many people does TEMPO LAKE WATER CO serve? ▼
TEMPO LAKE WATER CO serves 246 people in Port Orchard, Washington. It is a Private-owned system using Groundwater water sources with 99 service connections.
What type of violations does TEMPO LAKE WATER CO have? ▼
TEMPO LAKE WATER CO has 3,044 total violations: 23 health-based violations (MCL exceedances or treatment failures), 3,017 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in TEMPO LAKE WATER CO water? ▼
No PFAS testing data is available for TEMPO LAKE WATER CO under the EPA's UCMR5 monitoring program.
What water source does TEMPO LAKE WATER CO use? ▼
TEMPO LAKE WATER CO 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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