Tap WaterIndex

Tap water quality report

Garrison Lake Pump District

EPA monitoring tested this supplier for 106 contaminants and detected 23. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

106
contaminants tested
23
detected
17,148
people served
8
health-based violations
Water source
Ground water
Ownership
Private
Counties served
Kent

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.

8
health-based violations
11
violations on file
0
still open
ViolationTypeStatusPeriod
MCL Health-based Resolved 1997-07-01 → 1997-09-30
MCL Health-based Resolved 1997-07-01 → 1997-09-30
MCL Health-based Resolved 1997-07-01 → 1997-09-30
MCL Health-based Resolved 1997-04-01 → 1997-06-30
MCL Health-based Resolved 1997-04-01 → 1997-06-30
MCL Health-based Resolved 1997-04-01 → 1997-06-30
MCL Health-based Archived 1990-02-06 → 1990-05-05
MCL Health-based Archived 1983-12-21 → 1984-01-20
Other Monitoring Resolved 2002-07-01 → 2002-07-25
MR Monitoring Resolved 2001-07-01

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 single worst sample on record — over 100% is worth reading, but is not by itself a violation. Formal violations are listed separately.
ContaminantLevel vs EPA limitDetection rateSourcePeriod
Nitrate
9100 µg/L 91%
of the EPA limit 10000 µg/L
 200/246 SYR4 2012–2019
Nitrate-Nitrite
9100 µg/L 91%
of the EPA limit 10000 µg/L
 99/122 SYR4 2012–2019
Copper
115 µg/L 8.8%
of the EPA limit 1300 µg/L
 64/69 SYR4 2012–2019
Fluoride
330 µg/L 8.3%
of the EPA limit 4000 µg/L
 29/123 SYR4 2012–2019
Chloroform
19.54 µg/L
No EPA limit set
 22/33 SYR4 2012–2019
Bromodichloromethane
7.4 µg/L
No EPA limit set
 21/33 SYR4 2012–2019
Dibromochloromethane
4.36 µg/L
No EPA limit set
 21/33 SYR4 2012–2019
Lead
0.00062 mg/L 4.1%
of the EPA limit 0.0150 mg/L
 16/16 LCR 2026
Dichloroacetic Acid
4.576 µg/L
No EPA limit set
 14/16 SYR4 2013–2019
TTHM
30.8 µg/L 39%
of the EPA limit 80 µg/L
 14/14 SYR4 2013–2019
Total Haloacetic Acids (HAA5)
9.154 µg/L 15%
of the EPA limit 60 µg/L
 14/15 SYR4 2013–2019
Trichloroacetic Acid
4.637 µg/L
No EPA limit set
 13/16 SYR4 2013–2019
Lead
7.4 µg/L 49%
of the EPA limit 15 µg/L
 7/69 SYR4 2012–2019
Bromoform
0.9800 µg/L
No EPA limit set
 6/33 SYR4 2012–2019
Combined Radium (-226 And -228)
1.52 pCi/L 30%
of the EPA limit 5 pCi/L
 5/5 SYR4 2013–2019
Chromium
6.3 µg/L 6.3%
of the EPA limit 100 µg/L
 4/6 SYR4 2013–2019
Xylenes, Total
6.49 µg/L 0.1%
of the EPA limit 10000 µg/L
 4/30 SYR4 2012–2019
Lithium
16.6 µg/L
No EPA limit set
 4/6 UCMR-5 2025
Dibromoacetic Acid
1.12 µg/L
No EPA limit set
 2/16 SYR4 2013–2019
Barium
110.3 µg/L 5.5%
of the EPA limit 2000 µg/L
 1/5 SYR4 2013–2019
Cadmium
0.6000 µg/L 12%
of the EPA limit 5 µg/L
 1/6 SYR4 2013–2019
Pentachlorophenol
0.5600 µg/L 56%
of the EPA limit 1 µg/L
 1/8 SYR4 2012–2018
Selenium
1.55 µg/L 3.1%
of the EPA limit 50 µg/L
 1/6 SYR4 2013–2019
83 contaminants tested, none detected
1,1,1-Trichloroethane1,1,2-Trichloroethane1,1-Dichloroethylene1,2,4-Trichlorobenzene1,2-DIBROMO-3-CHLOROPROPANE1,2-Dichloroethane1,2-Dichloropropane11Cl-PF3OUdS2,4,5-TP2,4-D4:2 Fts6:2 Fts8:2 Fts9Cl-PF3ONSAdonaAntimony, TotalArsenicAtrazineBhc-GammaBenzeneBenzo(A)PyreneBeryllium, TotalChlorobenzeneCyanideCarbofuranCarbon TetrachlorideChlordaneDichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDinosebEthylene DibromideEndrinEthylbenzeneHexachlorobenzeneHfpo-DaHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorMonobromoacetic AcidMonochloroacetic AcidNetfosaaNfdhaNmefosaaNitriteOxamylPfbaPFBSPfdaPfdoaPfeesaPfhpaPfhpsPfhxaPFHXSPfmbaPfmpaPFNAPFOAPFOSPfpeaPfpesPftaPftrdaPfunaPicloramSimazineStyreneTetrachloroethyleneThallium, TotalTolueneTotal Polychlorinated Biphenyls (PCB)ToxapheneTrichloroethyleneVinyl Chloridecis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Frequently asked questions about Garrison Lake Pump District

Is Garrison Lake Pump District tap water safe to drink?

EPA monitoring detected 23 contaminants in Garrison Lake Pump District'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 Garrison Lake Pump District's water?

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

How many people does Garrison Lake Pump District serve?

Garrison Lake Pump District reports serving 17,148 people, per its EPA record.

Has Garrison Lake Pump District had any water quality violations?

The EPA has 11 violations on file for Garrison Lake Pump District, of which 8 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.