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Tap water quality report

Lake of Egypt Pwd

EPA monitoring tested this supplier for 108 contaminants and detected 17. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

108
contaminants tested
17
detected
11,368
people served
65
health-based violations
Illinois rankingsLead in IllinoisPFAS in Illinois
Water source
Surface water
Ownership
Local government
Counties served
Williamson

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.

65
health-based violations
142
violations on file
0
still open
ViolationTypeStatusPeriod
TT Health-based Resolved 2024-07-01 → 2024-09-30
TT Health-based Resolved 2024-07-01 → 2024-09-30
TT Health-based Resolved 2024-07-01 → 2024-09-30
TT Health-based Resolved 2024-07-01 → 2024-09-30
TT Health-based Resolved 2024-07-01 → 2024-09-30
TT Health-based Resolved 2024-07-01 → 2024-09-30
TT Health-based Resolved 2024-04-01 → 2024-06-30
TT Health-based Resolved 2024-04-01 → 2024-06-30
TT Health-based Resolved 2024-04-01 → 2024-06-30
TT Health-based Resolved 2024-04-01 → 2024-06-30

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
Chlorite
880 µg/L 88%
of the EPA limit 1000 µg/L
worst single sample: 960 µg/L
120/120 SYR4 2012–2019
Chloroform
45.64 µg/L
No EPA limit set
worst single sample: 93.7 µg/L
112/114 SYR4 2012–2019
TTHM
50.935 µg/L 64%
of the EPA limit 80 µg/L
worst single sample: 100.6 µg/L
112/114 SYR4 2012–2019
Total Haloacetic Acids (HAA5)
47.81 µg/L 80%
of the EPA limit 60 µg/L
worst single sample: 87.5 µg/L
103/114 SYR4 2012–2019
Dichloroacetic Acid
28.145 µg/L
No EPA limit set
worst single sample: 53.4 µg/L
100/114 SYR4 2012–2019
Bromodichloromethane
6.61 µg/L
No EPA limit set
worst single sample: 7.14 µg/L
73/114 SYR4 2012–2019
Trichloroacetic Acid
16.74 µg/L
No EPA limit set
worst single sample: 28.4 µg/L
60/114 SYR4 2012–2019
Copper
38.1 µg/L 2.9%
of the EPA limit 1300 µg/L
worst single sample: 64 µg/L
40/40 SYR4 2014–2017
Monobromoacetic Acid
19.03 µg/L
No EPA limit set
worst single sample: 21.7 µg/L
35/114 SYR4 2012–2019
Dibromochloromethane
1.617 µg/L
No EPA limit set
worst single sample: 1.68 µg/L
19/114 SYR4 2012–2019
Lead
0.0 mg/L 0%
of the EPA limit 0.0150 mg/L
 16/16 LCR 2025
Nitrate
60 µg/L 0.6%
of the EPA limit 10000 µg/L
 12/16 SYR4 2012–2019
Barium
28.6 µg/L 1.4%
of the EPA limit 2000 µg/L
worst single sample: 30 µg/L
8/8 SYR4 2012–2019
Fluoride
1089.1 µg/L 27%
of the EPA limit 4000 µg/L
worst single sample: 1150 µg/L
8/8 SYR4 2012–2019
Monochloroacetic Acid
5.1905 µg/L
No EPA limit set
worst single sample: 5.74 µg/L
8/114 SYR4 2012–2019
Lead
1.54 µg/L 10%
of the EPA limit 15 µg/L
worst single sample: 1.6 µg/L
3/40 SYR4 2014–2017
Nitrate-Nitrite
50 µg/L 0.5%
of the EPA limit 10000 µg/L
 3/3 SYR4 2012–2018
91 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, TotalBromoformChlorobenzeneCyanideCadmiumCarbofuranCarbon TetrachlorideChlordaneChromiumDichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDibromoacetic AcidDinosebDiquatEthylene DibromideEndothallEndrinEthylbenzeneHexachlorobenzeneHfpo-DaHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorNetfosaaNfdhaNmefosaaNitriteOxamylPfbaPFBSPfdaPfdoaPfeesaPfhpaPfhpsPfhxaPFHXSPfmbaPfmpaPFNAPFOAPFOSPfpeaPfpesPftaPftrdaPfunaPentachlorophenolPicloramSeleniumSimazineStyreneTetrachloroethyleneThallium, TotalTolueneTotal Polychlorinated Biphenyls (PCB)ToxapheneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneLithiumO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
THOMAS, STUART
Phone
618-964-1380
Email
[email protected]

Frequently asked questions about Lake of Egypt Pwd

Is Lake of Egypt Pwd tap water safe to drink?

EPA monitoring detected 17 contaminants in Lake of Egypt Pwd'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 Lake of Egypt Pwd's water?

EPA monitoring detected Chlorite, Chloroform, TTHM, Total Haloacetic Acids (HAA5), Dichloroacetic Acid, and others. The full list with the level and data source for each is above.

How many people does Lake of Egypt Pwd serve?

Lake of Egypt Pwd reports serving 11,368 people in Illinois, per its EPA record.

Has Lake of Egypt Pwd had any water quality violations?

The EPA has 142 violations on file for Lake of Egypt Pwd, of which 65 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.