Tap water quality report

Willow Lake Pump District

EPA monitoring tested this supplier for 76 contaminants and detected 15. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

76
contaminants tested
15
detected
120
people served
0
health-based violations
Water source
Ground water
Ownership
Private
Counties served
Sussex

Compliance record

No violations on file. The EPA has no formal drinking-water violations recorded for this supplier.

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
22.34 µg/L 1.7%
of the EPA limit 1300 µg/L
worst single sample: 33.7 µg/L
17/18 SYR4 2013–2019
Nitrate
2591 µg/L 26%
of the EPA limit 10000 µg/L
16/16 SYR4 2012–2019
Lead
0.0 mg/L 0%
of the EPA limit 0.0150 mg/L
10/10 LCR 2024
Nitrate-Nitrite
2565.31 µg/L 26%
of the EPA limit 10000 µg/L
worst single sample: 2591 µg/L
8/8 SYR4 2012–2019
Dibromochloromethane
2.1575 µg/L
No EPA limit set
worst single sample: 2.3 µg/L
4/5 SYR4 2013–2019
Barium
77.718 µg/L 3.9%
of the EPA limit 2000 µg/L
worst single sample: 77.72 µg/L
3/3 SYR4 2013–2019
Bromodichloromethane
2.46 µg/L
No EPA limit set
worst single sample: 2.51 µg/L
3/5 SYR4 2013–2019
Chloroform
2.035 µg/L
No EPA limit set
worst single sample: 2.06 µg/L
3/5 SYR4 2013–2019
Di(2-ethylhexyl) Phthalate
0.6480 µg/L 11%
of the EPA limit 6 µg/L
worst single sample: 0.6700 µg/L
3/7 SYR4 2014–2018
TTHM
7.202 µg/L 9%
of the EPA limit 80 µg/L
worst single sample: 7.4 µg/L
3/3 SYR4 2013–2019
Bromoform
0.7700 µg/L
No EPA limit set
1/5 SYR4 2013–2019
Chromium
0.7000 µg/L 0.7%
of the EPA limit 100 µg/L
1/3 SYR4 2013–2019
Combined Radium (-226 And -228)
0.8900 pCi/L 18%
of the EPA limit 5 pCi/L
1/1 SYR4 2013
Dichloroacetic Acid
1.13 µg/L
No EPA limit set
1/2 SYR4 2013–2019
Total Haloacetic Acids (HAA5)
1.13 µg/L 1.9%
of the EPA limit 60 µg/L
1/2 SYR4 2013–2019
61 contaminants tested, none detected
1,1,1-Trichloroethane1,1,2-Trichloroethane1,1-Dichloroethylene1,2,4-Trichlorobenzene1,2-DIBROMO-3-CHLOROPROPANE1,2-Dichloroethane1,2-Dichloropropane2,4,5-TP2,4-DAntimony, TotalArsenicAtrazineBhc-GammaBenzeneBenzo(A)PyreneBeryllium, TotalChlorobenzeneCyanideCadmiumCarbofuranCarbon TetrachlorideChlordaneDichloromethaneDalaponDi(2-ethylhexyl) AdipateDibromoacetic AcidDinosebEthylene DibromideEndrinEthylbenzeneFluorideHexachlorobenzeneHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoLeadMercuryMethoxychlorMonobromoacetic AcidMonochloroacetic AcidNitriteOxamylPentachlorophenolPicloramSeleniumSimazineStyreneTetrachloroethyleneThallium, TotalTolueneTotal Polychlorinated Biphenyls (PCB)ToxapheneTrichloroacetic AcidTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Frequently asked questions about Willow Lake Pump District

Is Willow Lake Pump District tap water safe to drink?

EPA monitoring detected 15 contaminants in Willow 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 Willow Lake Pump District's water?

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

How many people does Willow Lake Pump District serve?

Willow Lake Pump District reports serving 120 people, per its EPA record.

Has Willow Lake Pump District had any water quality violations?

The EPA has no formal drinking-water violations on file for Willow Lake Pump District.

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.