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Tap water quality report

Garden Street Improvement Association

EPA monitoring tested this supplier for 78 contaminants and detected 16. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

78
contaminants tested
16
detected
54
people served
43
health-based violations
Illinois rankingsLead in IllinoisPFAS in Illinois
Water source
Ground water
Ownership
Private
Counties served
Will

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.

43
health-based violations
303
violations on file
0
still open
ViolationTypeStatusPeriod
MCL Health-based Archived 1997-06-01 → 1997-06-30
MCL Health-based Archived 1997-06-01 → 1997-06-30
MCL Health-based Archived 1997-06-01 → 1997-06-30
MCL Health-based Archived 1997-06-01 → 1997-06-30
MCL Health-based Archived 1997-06-01 → 1997-06-30
MCL Health-based Archived 1997-06-01 → 1997-06-30
MCL Health-based Archived 1997-06-01 → 1997-06-30
MCL Health-based Archived 1997-06-01 → 1997-06-30
MCL Health-based Archived 1997-05-01 → 1997-05-31
MCL Health-based Archived 1997-05-01 → 1997-05-31

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 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
Lead
0.0 mg/L 0%
of the EPA limit 0.0150 mg/L
 14/14 LCR 2023
Copper
240 µg/L 18%
of the EPA limit 1300 µg/L
 10/10 SYR4 2014–2017
Lead
11 µg/L 73%
of the EPA limit 15 µg/L
 6/10 SYR4 2014–2017
Arsenic
3.4 µg/L 34%
of the EPA limit 10 µg/L
 2/2 SYR4 2014–2017
Barium
190 µg/L 9.5%
of the EPA limit 2000 µg/L
 2/2 SYR4 2014–2017
Combined Radium (-226 And -228)
2.5 pCi/L 50%
of the EPA limit 5 pCi/L
 2/2 SYR4 2014–2017
Bromodichloromethane
3.32 µg/L
No EPA limit set
 1/3 SYR4 2012–2017
Bromoform
0.8710 µg/L
No EPA limit set
 1/3 SYR4 2012–2017
Chloroform
2.54 µg/L
No EPA limit set
 1/3 SYR4 2012–2017
Chromium
12 µg/L 12%
of the EPA limit 100 µg/L
 1/2 SYR4 2014–2017
Dibromoacetic Acid
2.01 µg/L
No EPA limit set
 1/3 SYR4 2012–2017
Dibromochloromethane
3.64 µg/L
No EPA limit set
 1/3 SYR4 2012–2017
Fluoride
781 µg/L 20%
of the EPA limit 4000 µg/L
 1/2 SYR4 2014–2017
Selenium
3.1 µg/L 6.2%
of the EPA limit 50 µg/L
 1/2 SYR4 2014–2017
TTHM
10.37 µg/L 13%
of the EPA limit 80 µg/L
 1/3 SYR4 2012–2017
Total Haloacetic Acids (HAA5)
2.01 µg/L 3.4%
of the EPA limit 60 µg/L
 1/3 SYR4 2012–2017
62 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, TotalChlorobenzeneCyanideCadmiumCarbofuranCarbon TetrachlorideChlordaneDichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDichloroacetic AcidDinosebDiquatEthylene DibromideEndothallEndrinEthylbenzeneHexachlorobenzeneHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorMonobromoacetic AcidMonochloroacetic AcidNitrateNitrate-NitriteNitriteOxamylPentachlorophenolPicloramSimazineStyreneTetrachloroethyleneThallium, TotalTolueneTotal Polychlorinated Biphenyls (PCB)ToxapheneTrichloroacetic AcidTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
ARCHULETA, RAYMOND
Phone
312-489-0992
Email
raymond.archuleta@cn.ca

Frequently asked questions about Garden Street Improvement Association

Is Garden Street Improvement Association tap water safe to drink?

EPA monitoring detected 16 contaminants in Garden Street Improvement Association'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 Garden Street Improvement Association's water?

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

How many people does Garden Street Improvement Association serve?

Garden Street Improvement Association reports serving 54 people in Illinois, per its EPA record.

Has Garden Street Improvement Association had any water quality violations?

The EPA has 303 violations on file for Garden Street Improvement Association, of which 43 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.