Safe Drinking Water Information System (SDWIS) Federal Reporting Services

Your Drinking Water Query results from SDWIS Fed Reporting Services

PWS ID	IL1970450
PWS Name	JOLIET
PWS Type	Community water system
Owner Type	Local government
Primary Source	Ground water
Primacy Type	State
Is Wholesaler?	No
Population Served	160000
County Served	Will

The tables below list all violations that the state reported to EPA for this water system. Health-based violations are listed first, followed by treatment technique, MRDL, monitoring, reporting, and other violations.

Health-based	Violations of maximum contaminant levels (MCLs) or maximum residual disinfectant levels (MRDLs), which specify the highest concentrations of contaminants or disinfectants, respectively, allowed in drinking water; or of treatment technique (TT) rules, which specify required processes intended to reduce the amounts of contaminants in drinking water. MCLs, MRDLs, and treatment technique rules are all health-based drinking water standards.
Maximum Contaminant Level or MCL	The highest level of a contaminant that is allowed in drinking water. MCLs are set as close to the MCLGs as feasible using the best available treatment technology.
Treatment Technique	A required process intended to reduce the level of a contaminant in drinking water.
Maximum residual disinfectant level or MRDL	The highest level of a disinfectant allowed in drinking water. There is convincing evidence that addition of a disinfectant is necessary for control of microbial contaminants.
Monitoring & reporting	Failure to conduct regular monitoring of drinking water quality, as required by SDWA, or to submit monitoring results in a timely fashion to the primacy agency or EPA.
Public notification & other	Failure to provide notification to the public as required by the Violations of Public Notification Rule and the Consumer Confidence Report Rule, and violations of other requirements such as those violations related to variances and exemptions.

Violations

Violation Category Code	Violation Type Description	Rule Name	Contaminant Name	Violation ID	Compliance Status Description	Compliance Period Begin Date	Compliance Period End Date	Is Health Based Ind
TT	LSL Inventory	Lead and Copper Rule Revisions	LEAD AND COPPER RULE REVISIONS	7091671	Returned to Compliance	17-OCT-2024	-	Yes
MR	Monitoring, Regular	Radionuclides and Revised Rad Rule	Combined Radium (-226 and -228)	7091669	Returned to Compliance	01-OCT-2024	31-DEC-2024	No
MR	Monitoring, Regular	Radionuclides and Revised Rad Rule	Combined Radium (-226 and -228)	7091668	Returned to Compliance	01-OCT-2024	31-DEC-2024	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Total Polychlorinated Biphenyls (PCB)	7091677	Known	01-JAN-2023	31-DEC-2025	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Total Polychlorinated Biphenyls (PCB)	7091676	Known	01-JAN-2023	31-DEC-2025	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Total Polychlorinated Biphenyls (PCB)	7091678	Known	01-JAN-2023	31-DEC-2025	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Total Polychlorinated Biphenyls (PCB)	7091679	Known	01-JAN-2023	31-DEC-2025	No
MR	Monitoring, Regular	Radionuclides and Revised Rad Rule	Combined Radium (-226 and -228)	7091647	Returned to Compliance	01-OCT-2017	31-DEC-2017	No
MR	Follow-up Or Routine LCR Tap M/R	Lead and Copper Rule	Lead and Copper Rule	7091643	Returned to Compliance	01-OCT-2017	-	No
MR	Monitoring, Regular	Nitrate Rule	Nitrate	7091645	Returned to Compliance	01-JAN-2017	31-DEC-2017	No
MR	Monitoring, Regular	Nitrate Rule	Nitrate	7091646	Returned to Compliance	01-JAN-2017	31-DEC-2017	No
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Combined Radium (-226 and -228)	7091614	Returned to Compliance	01-OCT-2007	31-DEC-2007	Yes
MR	Monitoring, Routine Major (TCR)	Total Coliform Rule	Coliform (TCR)	7091612	Returned to Compliance	01-AUG-2007	31-AUG-2007	No
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Combined Radium (-226 and -228)	7091613	Returned to Compliance	01-JUL-2007	30-SEP-2007	Yes
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	Chlorine	7091611	Returned to Compliance	01-JUL-2007	30-SEP-2007	No
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Combined Radium (-226 and -228)	7091610	Returned to Compliance	01-APR-2007	30-JUN-2007	Yes
MR	Water Quality Parameter M/R	Lead and Copper Rule	Lead and Copper Rule	7091609	Returned to Compliance	01-JAN-2007	30-JUN-2007	No
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Combined Radium (-226 and -228)	7091608	Returned to Compliance	01-JAN-2007	31-MAR-2007	Yes
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Combined Radium (-226 and -228)	7091507	Returned to Compliance	01-OCT-2006	31-DEC-2006	Yes
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Combined Radium (-226 and -228)	7091407	Returned to Compliance	01-JUL-2006	30-SEP-2006	Yes
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Combined Radium (-226 and -228)	7091306	Returned to Compliance	01-APR-2006	30-JUN-2006	Yes
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Gross Alpha, Excl. Radon and U	7091106	Returned to Compliance	01-JAN-2006	31-MAR-2006	Yes
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Combined Radium (-226 and -228)	7091206	Returned to Compliance	01-JAN-2006	31-MAR-2006	Yes
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Gross Alpha, Excl. Radon and U	7090206	Returned to Compliance	01-OCT-2005	31-DEC-2005	Yes
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Combined Radium (-226 and -228)	7090106	Returned to Compliance	01-OCT-2005	31-DEC-2005	Yes
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Gross Alpha, Excl. Radon and U	7089506	Returned to Compliance	01-JUL-2005	30-SEP-2005	Yes
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Combined Radium (-226 and -228)	7089406	Returned to Compliance	01-JUL-2005	30-SEP-2005	Yes
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Gross Alpha, Excl. Radon and U	7089205	Returned to Compliance	01-APR-2005	30-JUN-2005	Yes
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Combined Radium (-226 and -228)	7089105	Returned to Compliance	01-APR-2005	30-JUN-2005	Yes
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Gross Alpha, Excl. Radon and U	7088905	Returned to Compliance	01-JAN-2005	31-MAR-2005	Yes
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Combined Radium (-226 and -228)	7088805	Returned to Compliance	01-JAN-2005	31-MAR-2005	Yes
MR	Monitoring, Routine Minor (TCR)	Total Coliform Rule	Coliform (TCR)	7087705	Returned to Compliance	01-DEC-2004	31-DEC-2004	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	Chlorine	7088305	Returned to Compliance	01-OCT-2004	31-DEC-2004	No
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Combined Radium (-226 and -228)	7087505	Returned to Compliance	01-OCT-2004	31-DEC-2004	Yes
MR	Monitoring, Regular	Radionuclides and Revised Rad Rule	Gross Alpha, Excl. Radon and U	7087105	Returned to Compliance	01-JUL-2004	30-SEP-2004	No
MR	Monitoring, Regular	Radionuclides and Revised Rad Rule	Combined Radium (-226 and -228)	7087005	Returned to Compliance	01-JUL-2004	30-SEP-2004	No
MR	Monitoring, Regular	Radionuclides and Revised Rad Rule	Combined Uranium	7087205	Returned to Compliance	01-JUL-2004	30-SEP-2004	No
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Combined Radium (-226 and -228)	7086805	Returned to Compliance	01-JUL-2004	30-SEP-2004	Yes
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Combined Radium (-226 and -228)	7086404	Returned to Compliance	01-APR-2004	30-JUN-2004	Yes
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Combined Radium (-226 and -228)	7086004	Returned to Compliance	01-JAN-2004	31-MAR-2004	Yes
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Combined Radium (-226 and -228)	7085404	Returned to Compliance	01-OCT-2003	31-DEC-2003	Yes
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Combined Radium (-226 and -228)	7084904	Returned to Compliance	01-JUL-2003	30-SEP-2003	Yes
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Combined Radium (-226 and -228)	7084603	Returned to Compliance	01-APR-2003	30-JUN-2003	Yes
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Combined Radium (-226 and -228)	7084103	Returned to Compliance	01-JAN-2003	31-MAR-2003	Yes
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Combined Radium (-226 and -228)	7083803	Returned to Compliance	01-OCT-2002	31-DEC-2002	Yes
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Gross Alpha, Excl. Radon and U	7083702	Returned to Compliance	01-APR-2002	30-SEP-2002	Yes
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Combined Radium (-226 and -228)	5408201	Returned to Compliance	01-JUL-2001	30-SEP-2002	Yes
TT	WQP Entry Point/Tap Treatment Technique Non-Compliance	Lead and Copper Rule	Lead and Copper Rule	4858799	Returned to Compliance	01-OCT-1998	31-DEC-1998	Yes
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Gross Alpha, Excl. Radon and U	4146298	Returned to Compliance	01-APR-1998	31-MAR-2002	Yes
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Combined Radium (-226 and -228)	3924997	Returned to Compliance	01-JUL-1997	30-JUN-2001	Yes

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Enforcement Actions

Latest Enforcement ID	Associated To Violation ID	Enforcement Action Type Code	Enforcement Action Description	Enforcement Date	Originator Description	Enforcement Comment
8883573	7091669	SIF	State Public Notification received	07-AUG-2025	State	-
8883574	7091668	SIF	State Public Notification received	07-AUG-2025	State	-
8883617	7091671	SOX	State Compliance achieved	15-APR-2025	State	-
8883549	7091643	SOX	State Compliance achieved	19-JUL-2018	State	11/15/2018: Collected all 50 samples in 2018YR to satisfy MNR violations, move back to 3Y. JL
8883543	7091647	SIF	State Public Notification received	27-JUN-2018	State	-
8883546	7091646	SIF	State Public Notification received	27-JUN-2018	State	-
8883545	7091645	SIF	State Public Notification received	27-JUN-2018	State	-
8883529	7091612	SOX	State Compliance achieved	01-MAR-2008	State	Supply 6 months without a coliform violation.
8883527	7091614	SIF	State Public Notification received	25-FEB-2008	State	-
8883528	7091407	SOX	State Compliance achieved	31-DEC-2007	State	-
8883528	7091507	SOX	State Compliance achieved	31-DEC-2007	State	-
8883528	7091608	SOX	State Compliance achieved	31-DEC-2007	State	-
8883528	7091610	SOX	State Compliance achieved	31-DEC-2007	State	-
8883528	7091613	SOX	State Compliance achieved	31-DEC-2007	State	-
8883528	7090106	SOX	State Compliance achieved	31-DEC-2007	State	-
8883528	7089406	SOX	State Compliance achieved	31-DEC-2007	State	-
8883528	7091306	SOX	State Compliance achieved	31-DEC-2007	State	-
8883528	7088805	SOX	State Compliance achieved	31-DEC-2007	State	-
8883528	7087505	SOX	State Compliance achieved	31-DEC-2007	State	-
8883528	7086805	SOX	State Compliance achieved	31-DEC-2007	State	-
8883528	7086404	SOX	State Compliance achieved	31-DEC-2007	State	-
8883528	7086004	SOX	State Compliance achieved	31-DEC-2007	State	-
8883528	7091206	SOX	State Compliance achieved	31-DEC-2007	State	-
8883528	7089105	SOX	State Compliance achieved	31-DEC-2007	State	-
8883528	7084603	SOX	State Compliance achieved	31-DEC-2007	State	-
8883528	7084904	SOX	State Compliance achieved	31-DEC-2007	State	-
8883528	7085404	SOX	State Compliance achieved	31-DEC-2007	State	-
8883523	7091611	SOX	State Compliance achieved	24-SEP-2007	State	-
8883513	7091609	SOX	State Compliance achieved	12-JUL-2007	State	WQP Form received on 7-12-2007
8882506	7091106	SIF	State Public Notification received	28-APR-2006	State	-
8882306	7088305	SIF	State Public Notification received	04-APR-2006	State	-
8882306	7087705	SIF	State Public Notification received	04-APR-2006	State	-
8882206	7088905	SOX	State Compliance achieved	13-FEB-2006	State	-
8882206	7090206	SOX	State Compliance achieved	13-FEB-2006	State	-
8882206	7089506	SOX	State Compliance achieved	13-FEB-2006	State	-
8882206	7089205	SOX	State Compliance achieved	13-FEB-2006	State	-
8881006	7087005	SIF	State Public Notification received	03-JAN-2006	State	Supply issued PN 6/28/05 (on time), IEPA rcvd copy 1/3/06.
8881006	7087105	SIF	State Public Notification received	03-JAN-2006	State	Supply issued PN 6/28/05 (on time), IEPA rcvd copy 1/3/06.
8881006	7087205	SIF	State Public Notification received	03-JAN-2006	State	Supply issued PN 6/28/05 (on time), IEPA rcvd copy 1/3/06.
8869699	4858799	SOX	State Compliance achieved	30-SEP-1999	State	-
6282896	3481296	SIF	State Public Notification received	15-AUG-1996	State	-
5476896	3174195	SIF	State Public Notification received	12-JAN-1996	State	-
2224994	2033593	SOX	State Compliance achieved	14-APR-1994	State	-
2022493	1784292	SOX	State Compliance achieved	01-MAR-1993	State	-
1229491	1337391	SIE	State Public Notification requested	17-AUG-1991	State	-

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All Facilities

Facility Name	Facility ID	Is Source	Facility Type Description	Water Type Description	Availability Description	Facility Activity Status
WELL 14 (01017) ABANDONED	18815	Yes	Well	Ground water	Other	Inactive
WELL 30D (01963)	40332	Yes	Well	Ground water	Permanent	Active
WELL 29D (01881)	40136	Yes	Well	Ground water	Permanent	Active
WELL 24D (01704)	34504	Yes	Well	Ground water	Permanent	Active
WELL 103 (01752)	34485	Yes	Well	Ground water	Permanent	Active
WELL 101 (01751)	34482	Yes	Well	Ground water	Permanent	Active
WELL 27D (01707)	34393	Yes	Well	Ground water	Permanent	Active
WELL 28D (01709)	34392	Yes	Well	Ground water	Permanent	Active
WELL 25D (01688)	34368	Yes	Well	Ground water	Permanent	Active
WELL 105 (01685)	34354	Yes	Well	Ground water	Permanent	Active
WELL 104 (01684)	34353	Yes	Well	Ground water	Permanent	Active
WELL 102 (01651)	34267	Yes	Well	Ground water	Permanent	Active
WELL 22D (01628)	34106	Yes	Well	Ground water	Permanent	Active
WELL 23D (01612)	34105	Yes	Well	Ground water	Permanent	Active
WELL 20D (01580)	33949	Yes	Well	Ground water	Permanent	Active
WELL 21D (01555)	33739	Yes	Well	Ground water	Permanent	Active
WELL 17D (01346)	32294	Yes	Well	Ground water	Permanent	Active
WELL 18D (01339)	32287	Yes	Well	Ground water	Permanent	Active
WELL 12D (22123)	20752	Yes	Well	Ground water	Permanent	Active
WELL 11D (22122)	20751	Yes	Well	Ground water	Permanent	Active
WELL 10D (22121)	20750	Yes	Well	Ground water	Permanent	Active
WELL 8D (22119)	20748	Yes	Well	Ground water	Permanent	Active
WELL 7D (22118)	20747	Yes	Well	Ground water	Permanent	Active
WELL 6D (22117)	20746	Yes	Well	Ground water	Permanent	Active
WELL 5D (22116)	20745	Yes	Well	Ground water	Permanent	Active
WELL 16D (01280)	19072	Yes	Well	Ground water	Permanent	Active
WELL 15D (01170)	18964	Yes	Well	Ground water	Permanent	Active
WELL 26 (01700) INACTIVE	34489	Yes	Well	Ground water	Other	Inactive
WELL 19 (01486) ABANDONED	33200	Yes	Well	Ground water	Other	Inactive
WELL 9D (22120) ABANDONED	20749	Yes	Well	Ground water	Other	Inactive
WELL 4D (22115) ABANDONED	20744	Yes	Well	Ground water	Other	Inactive
WELL 3D (22114) ABANDONED	20743	Yes	Well	Ground water	Other	Inactive
WELL 2D (22113) ABANDONED	20742	Yes	Well	Ground water	Other	Inactive
WELL 1D (22112) ABANDONED	20741	Yes	Well	Ground water	Other	Inactive
WELL 5 (22111) ADANDONED	20740	Yes	Well	Ground water	Other	Inactive
WELL 4 (22110) ABANDONED	20739	Yes	Well	Ground water	Other	Inactive
WELL 3 (22109) ABANDONED	20738	Yes	Well	Ground water	Other	Inactive
WELL 2 (22108) ABANDONED	20737	Yes	Well	Ground water	Other	Inactive
WELL 1 (22107) ABANDONED	20736	Yes	Well	Ground water	Other	Inactive
JOLIET	25278	No	Distribution System/Zone	-	-	Active
SCHOOL LEAD SAMPLING	45630	No	Distribution System/Zone	-	-	Active
CHILDCARE FACILITY LEAD SAMPLING	45634	No	Distribution System/Zone	-	-	Active
PF22-PRAIRIE & CAMPBELL BOOSTER STATION	44715	No	Pump Facility	-	-	Active
PF23-BLUFF STREET BOOSTER STATION	44716	No	Pump Facility	-	-	Active
PF24-WASHINGTON STREET BOOSTER STATION	44717	No	Pump Facility	-	-	Active
PF25-RICHARDS STREET BOOSTER STATION	44718	No	Pump Facility	-	-	Active
GENERIC FINISHED SAMPLING STATION	28937	No	Sampling Station	-	-	Active
GENERIC RAW SAMPLING STATION	31359	No	Sampling Station	-	-	Active
WATER QUALITY SAMPLING	47060	No	Sampling Station	-	-	Active
WATER QUALITY SAMPLING	47061	No	Sampling Station	-	-	Active

1 - 50 of 93

Treatment Processes

Facility Name	Facility ID	Treatment Process	Treatment Objective
TP01HMO 6D,7D,8D,24D,101,102,103,104,105	17556	Inhibitor, Polyphosphate	Corrosion control
TP01HMO 6D,7D,8D,24D,101,102,103,104,105	17556	Innovative	Radionuclides removal
TP01HMO 6D,7D,8D,24D,101,102,103,104,105	17556	Hypochlorination, Pre	Disinfection
TP 02-WELL 1 (INACTIVE)	17557	Gaseous Chlorination, Pre	Disinfection
TP 02-WELL 1 (INACTIVE)	17557	Gaseous Chlorination, Pre	Iron removal
TP 02-WELL 1 (INACTIVE)	17557	Sequestration	Iron removal
TP 04-WELL 3D (INACTIVE)	17559	Inhibitor, Polyphosphate	Corrosion control
TP 05-WELL 4D (INACTIVE)	17560	Inhibitor, Polyphosphate	Corrosion control
TP 05-WELL 4D (INACTIVE)	17560	Gaseous Chlorination, Pre	Disinfection
TP 05-WELL 4D (INACTIVE)	17560	Gaseous Chlorination, Pre	Iron removal
TP06-HMO WELL 5D	17561	Inhibitor, Polyphosphate	Corrosion control
TP06-HMO WELL 5D	17561	Innovative	Radionuclides removal
TP06-HMO WELL 5D	17561	Hypochlorination, Pre	Disinfection
TP07-HMO WELL 9D INACTIVE	17562	Sequestration	Corrosion control
TP07-HMO WELL 9D INACTIVE	17562	Innovative	Radionuclides removal
TP07-HMO WELL 9D INACTIVE	17562	Hypochlorination, Pre	Disinfection
TP08-HMO WELLS 10D,22D	17563	Inhibitor, Polyphosphate	Corrosion control
TP08-HMO WELLS 10D,22D	17563	Innovative	Radionuclides removal
TP08-HMO WELLS 10D,22D	17563	Hypochlorination, Pre	Disinfection
TP09-HMO WELLS 11D,23D	17564	Inhibitor, Polyphosphate	Corrosion control
TP09-HMO WELLS 11D,23D	17564	Innovative	Radionuclides removal
TP09-HMO WELLS 11D,23D	17564	Hypochlorination, Pre	Disinfection
TP10-HMO WELL 12D	17565	Inhibitor, Polyphosphate	Corrosion control
TP10-HMO WELL 12D	17565	Innovative	Radionuclides removal
TP10-HMO WELL 12D	17565	Hypochlorination, Pre	Disinfection
TP11-HMO WELL 15D	17566	Innovative	Radionuclides removal
TP11-HMO WELL 15D	17566	Hypochlorination, Pre	Disinfection
TP11-HMO WELL 15D	17566	Sequestration	Iron removal
TP12-HMO WELL 16D	17567	Innovative	Radionuclides removal
TP12-HMO WELL 16D	17567	Hypochlorination, Pre	Disinfection
TP12-HMO WELL 16D	17567	Sequestration	Iron removal
TP14-HMO WELL 18D	33066	Innovative	Radionuclides removal
TP14-HMO WELL 18D	33066	Hypochlorination, Pre	Disinfection
TP14-HMO WELL 18D	33066	Sequestration	Corrosion control
TP 13-WELL 17 INACTIVE	33067	Gaseous Chlorination, Pre	Disinfection
TP 15-WELL 19 (INACTIVE)	33700	Gaseous Chlorination, Post	Disinfection
TP 15-WELL 19 (INACTIVE)	33700	Inhibitor, Polyphosphate	Corrosion control
TP 17-WELLS 21D INACTIVE	33840	Gaseous Chlorination, Pre	Disinfection
TP 17-WELLS 21D INACTIVE	33840	Inhibitor, Polyphosphate	Corrosion control
TP 16-WELL 20D INACTIVE	33950	Gaseous Chlorination, Pre	Disinfection
TP 16-WELL 20D INACTIVE	33950	Sequestration	Iron removal
TP 16-WELL 20D INACTIVE	33950	Sequestration	Corrosion control
TP 18-WELL 22D INACTIVE	34315	Gaseous Chlorination, Pre	Disinfection
TP 18-WELL 22D INACTIVE	34315	Sequestration	Corrosion control
TP 18-WELL 22D INACTIVE	34315	Sequestration	Iron removal
TP19-HMO WELLS 17D,20D,21D,25D,27D,28D	35135	Innovative	Radionuclides removal
TP19-HMO WELLS 17D,20D,21D,25D,27D,28D	35135	Hypochlorination, Pre	Disinfection
TP19-HMO WELLS 17D,20D,21D,25D,27D,28D	35135	Inhibitor, Polyphosphate	Corrosion control
TP20 - WELL #29D HMO TREATMENT	40137	Innovative	Radionuclides removal
TP20 - WELL #29D HMO TREATMENT	40137	Hypochlorination, Post	Disinfection

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For more information on a Water System:
Ask the operators of your water system, contact your primacy agency or file a Freedom of Information Act (FOIA) request.
Drinking water in general: Find out more about your drinking water web site or call the Safe Drinking Water Hotline (1-800-426-4791). EPA has also prepared a table about various regulated drinking water contaminants.
Tools for accessing EPA drinking water data: Safe Drinking Water Information System (SDWIS) Federal Reporting Services and Drinking Water Performance and Results Report.
Research Data: As well as monitoring the levels of drinking water contaminants for which EPA has set standards, EPA, states, and water systems also carry out studies of contaminants that may need to be regulated in the future. For more information about these contaminants, please see the National Contaminant Occurrence Database.

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