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Tap water quality report

Nisqually-Leschi & West Nisqually

EPA monitoring tested this supplier for 81 contaminants and detected 17. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

81
contaminants tested
17
detected
3,200
people served
4
health-based violations
Washington rankingsLead in WashingtonPFAS in Washington
Water source
Ground water
Ownership
Native American

Compliance record

Formal violations the EPA has on file for this supplier. A health-based violation means a contaminant limit or a required treatment was breached; the rest are monitoring or reporting failures — still violations, but not a measured health risk.

4
health-based violations
692
violations on file
0
still open
ViolationTypeStatusPeriod
TT Health-based Resolved 2024-10-17
MCL Health-based Resolved 2009-06-01 → 2009-06-30
MCL Health-based Resolved 2009-06-01 → 2009-06-30
MCL Health-based Archived 2001-09-01 → 2001-09-30
Other Monitoring Resolved 2025-04-03
MR Monitoring Resolved 2024-07-01 → 2024-07-31
MON Monitoring Resolved 2024-07-01 → 2024-07-31
MR Monitoring Resolved 2023-10-31
MR Monitoring Resolved 2023-10-01
MR Monitoring Resolved 2023-01-01 → 2023-12-31

Other contaminants detected

Each bar shows the measured level as a share of the EPA limit: green is well under, amber is close to it, red is over. For lead and copper the limit applies to exactly the 90th-percentile figure shown, so red there means a real exceedance. For everything else the limit applies to a running annual average while the figure is the 95th percentile of this system's samples — over 100% is worth reading, but is not by itself a violation. Where a single sample came in higher than that percentile, it is noted under the bar. Formal violations are listed separately.
ContaminantLevel vs EPA limitDetection rateSourcePeriod
Copper
195 µg/L 15%
of the EPA limit 1300 µg/L
worst single sample: 760 µg/L
46/56 SYR4 2013–2019
Lead
2.5 µg/L 17%
of the EPA limit 15 µg/L
worst single sample: 5.2 µg/L
21/56 SYR4 2013–2019
Nitrate
800 µg/L 8%
of the EPA limit 10000 µg/L
 20/32 SYR4 2012–2019
Chloroform
31.25 µg/L
No EPA limit set
worst single sample: 42.1 µg/L
15/17 SYR4 2013–2019
Bromodichloromethane
4.965 µg/L
No EPA limit set
worst single sample: 5.9 µg/L
12/16 SYR4 2013–2019
Lead
0.0027 mg/L 18%
of the EPA limit 0.0150 mg/L
 11/11 LCR 2023
TTHM
42.605 µg/L 53%
of the EPA limit 80 µg/L
worst single sample: 48.8 µg/L
8/8 SYR4 2013–2019
Combined Radium (-226 And -228)
2.58 pCi/L 52%
of the EPA limit 5 pCi/L
worst single sample: 2.6 pCi/L
5/5 SYR4 2015–2016
Dibromochloromethane
1.46 µg/L
No EPA limit set
worst single sample: 1.5 µg/L
5/15 SYR4 2013–2019
Dichloroacetic Acid
7.388 µg/L
No EPA limit set
worst single sample: 7.735 µg/L
5/9 SYR4 2013–2019
Total Haloacetic Acids (HAA5)
20.35 µg/L 34%
of the EPA limit 60 µg/L
worst single sample: 22 µg/L
4/8 SYR4 2013–2019
Trichloroacetic Acid
15.3855 µg/L
No EPA limit set
worst single sample: 16.4 µg/L
4/9 SYR4 2013–2019
Nitrate-Nitrite
527 µg/L 5.3%
of the EPA limit 10000 µg/L
worst single sample: 530 µg/L
3/5 SYR4 2013–2019
Xylenes, Total
0.8050 µg/L 0%
of the EPA limit 10000 µg/L
worst single sample: 0.8300 µg/L
3/10 SYR4 2013–2019
Fluoride
295 µg/L 7.4%
of the EPA limit 4000 µg/L
worst single sample: 300 µg/L
2/5 SYR4 2013–2019
Arsenic
3 µg/L 30%
of the EPA limit 10 µg/L
 1/6 SYR4 2013–2019
Bromoform
1 µg/L
No EPA limit set
 1/15 SYR4 2013–2019
64 contaminants tested, none detected
1,1,1-Trichloroethane1,1,2-Trichloroethane1,1-Dichloroethylene1,2,4-Trichlorobenzene1,2-DIBROMO-3-CHLOROPROPANE1,2-Dichloroethane1,2-Dichloropropane2,3,7,8-TCDD2,4,5-TP2,4-DAntimony, TotalAsbestosAtrazineBhc-GammaBariumBenzeneBenzo(A)PyreneBeryllium, TotalChlorobenzeneCyanideCadmiumCarbofuranCarbon TetrachlorideChlordaneChromiumDichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDibromoacetic AcidDinosebDiquatEthylene DibromideEndothallEndrinEthylbenzeneGlyphosateHexachlorobenzeneHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorMonobromoacetic AcidMonochloroacetic AcidNitriteOxamylPentachlorophenolPicloramSeleniumSimazineStyreneTetrachloroethyleneThallium, TotalTolueneTotal Polychlorinated Biphenyls (PCB)ToxapheneTrichloroethyleneVinyl Chloridecis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
BERKSON, TONY
Phone
360-456-5221
Email
[email protected]

Frequently asked questions about Nisqually-Leschi & West Nisqually

Is Nisqually-Leschi & West Nisqually tap water safe to drink?

EPA monitoring detected 17 contaminants in Nisqually-Leschi & West Nisqually's water. A detection isn't the same as a violation — most levels are within federal limits. See each level and source above, and the utility's annual Consumer Confidence Report for its official compliance status.

What contaminants were detected in Nisqually-Leschi & West Nisqually's water?

EPA monitoring detected Copper, Lead, Nitrate, Chloroform, Bromodichloromethane, and others. The full list with the level and data source for each is above.

How many people does Nisqually-Leschi & West Nisqually serve?

Nisqually-Leschi & West Nisqually reports serving 3,200 people in Washington, per its EPA record.

Has Nisqually-Leschi & West Nisqually had any water quality violations?

The EPA has 692 violations on file for Nisqually-Leschi & West Nisqually, of which 4 are health-based (a contaminant limit or required treatment was breached) and 0 remain open. The rest are monitoring or reporting failures.

Where does this data come from?

Every figure is official EPA drinking-water monitoring — the Lead & Copper Rule, the UCMR-5 nationwide testing program, and the EPA Six-Year Review — not our own testing. Each number is labelled with its source and period.