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Tap water quality report

Ridgecrest North Subdivision

EPA monitoring tested this supplier for 78 contaminants and detected 20. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

78
contaminants tested
20
detected
60
people served
8
health-based violations
Illinois rankingsLead in IllinoisPFAS in Illinois
Water source
Ground water
Ownership
Private
Counties served
Grundy

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
109
violations on file
2
still open
ViolationTypeStatusPeriod
MCL Health-based Archived 2001-06-01 → 2001-06-30
MCL Health-based Archived 2001-06-01 → 2001-06-30
MCL Health-based Archived 1992-11-01 → 1992-11-30
MCL Health-based Archived 1992-11-01 → 1992-11-30
MCL Health-based Archived 1992-11-01 → 1992-11-30
MCL Health-based Archived 1992-11-01 → 1992-11-30
MCL Health-based Archived 1991-06-01 → 1991-06-30
MCL Health-based Archived 1991-06-01 → 1991-06-30
RPT Monitoring Unaddressed 2025-07-02
RPT Monitoring Unaddressed 2025-07-02

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
Lead
0.0070 mg/L 47%
of the EPA limit 0.0150 mg/L
 14/14 LCR 2024
Copper
290.8 µg/L 22%
of the EPA limit 1300 µg/L
worst single sample: 367 µg/L
13/15 SYR4 2012–2018
Nitrate
896 µg/L 9%
of the EPA limit 10000 µg/L
 10/42 SYR4 2012–2019
Barium
29 µg/L 1.5%
of the EPA limit 2000 µg/L
 8/8 SYR4 2012–2018
Fluoride
462.75 µg/L 12%
of the EPA limit 4000 µg/L
worst single sample: 475 µg/L
8/8 SYR4 2012–2018
Combined Radium (-226 And -228)
2.768 pCi/L 55%
of the EPA limit 5 pCi/L
worst single sample: 2.78 pCi/L
7/8 SYR4 2013–2019
Lead
4.949 µg/L 33%
of the EPA limit 15 µg/L
worst single sample: 5.39 µg/L
4/15 SYR4 2012–2018
Styrene
16.909 µg/L 17%
of the EPA limit 100 µg/L
worst single sample: 18.4 µg/L
3/17 SYR4 2012–2019
Chloroform
2.98545 µg/L
No EPA limit set
worst single sample: 3.06 µg/L
2/3 SYR4 2013–2017
TTHM
3.81195 µg/L 4.8%
of the EPA limit 80 µg/L
worst single sample: 3.93 µg/L
2/3 SYR4 2013–2017
Arsenic
1.4 µg/L 14%
of the EPA limit 10 µg/L
 1/8 SYR4 2012–2018
Bromodichloromethane
0.8680 µg/L
No EPA limit set
 1/3 SYR4 2013–2017
Carbon Tetrachloride
0.5000 µg/L 10%
of the EPA limit 5 µg/L
 1/16 SYR4 2012–2019
Dichloromethane
1.94 µg/L 39%
of the EPA limit 5 µg/L
 1/16 SYR4 2012–2019
Ethylbenzene
0.5500 µg/L 0.1%
of the EPA limit 700 µg/L
 1/16 SYR4 2012–2019
Monobromoacetic Acid
31.4 µg/L
No EPA limit set
 1/3 SYR4 2013–2017
Nitrate-Nitrite
60 µg/L 0.6%
of the EPA limit 10000 µg/L
 1/2 SYR4 2014–2017
Selenium
4 µg/L 8%
of the EPA limit 50 µg/L
 1/8 SYR4 2012–2018
Toluene
0.8100 µg/L 0.1%
of the EPA limit 1000 µg/L
 1/16 SYR4 2012–2019
Total Haloacetic Acids (HAA5)
31.4 µg/L 52%
of the EPA limit 60 µg/L
 1/3 SYR4 2013–2017
58 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, TotalAtrazineBhc-GammaBenzeneBenzo(A)PyreneBeryllium, TotalBromoformChlorobenzeneCyanideCadmiumCarbofuranChlordaneChromiumDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDibromoacetic AcidDibromochloromethaneDichloroacetic AcidDinosebDiquatEthylene DibromideEndothallEndrinHexachlorobenzeneHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorMonochloroacetic AcidNitriteOxamylPentachlorophenolPicloramSimazineTetrachloroethyleneThallium, TotalTotal Polychlorinated Biphenyls (PCB)ToxapheneTrichloroacetic AcidTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
KAUFMAN, DONALD
Phone
815-942-0784

Frequently asked questions about Ridgecrest North Subdivision

Is Ridgecrest North Subdivision tap water safe to drink?

EPA monitoring detected 20 contaminants in Ridgecrest North Subdivision'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 Ridgecrest North Subdivision's water?

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

How many people does Ridgecrest North Subdivision serve?

Ridgecrest North Subdivision reports serving 60 people in Illinois, per its EPA record.

Has Ridgecrest North Subdivision had any water quality violations?

The EPA has 109 violations on file for Ridgecrest North Subdivision, of which 8 are health-based (a contaminant limit or required treatment was breached) and 2 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.