Safe Drinking Water Information System (SDWIS) Federal Reporting Services

Your Drinking Water Query results from SDWIS Fed Reporting Services

PWS ID	LA1127015
PWS Name	HUDSON GAARS MILL WATER SYSTEM
PWS Type	Community water system
Owner Type	Private
Primary Source	Ground water
Primacy Type	State
Is Wholesaler?	No
Population Served	660
County Served	Winn Parish

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
Other	Public Notification Violation for NPDWR Violation	Public Notice Rule and Revised PN Rule	Public Notice	6009121	Returned to Compliance	19-NOV-2021	-	No
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	Total Haloacetic Acids (HAA5)	6009118	Returned to Compliance	01-OCT-2021	31-DEC-2021	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	6009115	Returned to Compliance	01-JUL-2021	30-SEP-2021	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	Total Haloacetic Acids (HAA5)	6009114	Returned to Compliance	01-JUL-2021	30-SEP-2021	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	Total Haloacetic Acids (HAA5)	6009110	Returned to Compliance	01-APR-2021	30-JUN-2021	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	6009111	Returned to Compliance	01-APR-2021	30-JUN-2021	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	Total Haloacetic Acids (HAA5)	6009107	Returned to Compliance	01-JAN-2021	31-MAR-2021	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	6009105	Returned to Compliance	01-JAN-2021	31-MAR-2021	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	6009101	Returned to Compliance	01-OCT-2020	31-DEC-2020	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	Total Haloacetic Acids (HAA5)	6009099	Returned to Compliance	01-OCT-2020	31-DEC-2020	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	6009096	Returned to Compliance	01-JUL-2020	30-SEP-2020	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	Total Haloacetic Acids (HAA5)	6009095	Returned to Compliance	01-JUL-2020	30-SEP-2020	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	6009093	Returned to Compliance	01-APR-2020	30-JUN-2020	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	Total Haloacetic Acids (HAA5)	6009091	Returned to Compliance	01-APR-2020	30-JUN-2020	Yes
Other	Public Notification Violation for NPDWR Violation	Public Notice Rule and Revised PN Rule	Public Notice	6009089	Returned to Compliance	10-FEB-2020	-	No
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	6009088	Returned to Compliance	01-JAN-2020	31-MAR-2020	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	Total Haloacetic Acids (HAA5)	6009086	Returned to Compliance	01-JAN-2020	31-MAR-2020	Yes
TT	Failure To Address Deficiency	Ground Water Rule	Groundwater Rule	6009084	Returned to Compliance	23-DEC-2019	-	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	6009083	Returned to Compliance	01-OCT-2019	31-DEC-2019	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	Total Haloacetic Acids (HAA5)	6009081	Returned to Compliance	01-OCT-2019	31-DEC-2019	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	6009078	Returned to Compliance	01-JUL-2019	30-SEP-2019	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	Total Haloacetic Acids (HAA5)	6009077	Returned to Compliance	01-JUL-2019	30-SEP-2019	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	Total Haloacetic Acids (HAA5)	6009073	Returned to Compliance	01-APR-2019	30-JUN-2019	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	6009075	Returned to Compliance	01-APR-2019	30-JUN-2019	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	Total Haloacetic Acids (HAA5)	6009068	Returned to Compliance	01-JAN-2019	31-MAR-2019	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	6009071	Returned to Compliance	01-JAN-2019	31-MAR-2019	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	6009067	Returned to Compliance	01-OCT-2018	31-DEC-2018	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	Total Haloacetic Acids (HAA5)	6009065	Returned to Compliance	01-OCT-2018	31-DEC-2018	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	6009063	Returned to Compliance	01-JUL-2018	30-SEP-2018	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	Total Haloacetic Acids (HAA5)	6009062	Returned to Compliance	01-JUL-2018	30-SEP-2018	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	6009058	Returned to Compliance	01-APR-2018	30-JUN-2018	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	Total Haloacetic Acids (HAA5)	6009059	Returned to Compliance	01-APR-2018	30-JUN-2018	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	6009056	Returned to Compliance	01-JAN-2018	31-MAR-2018	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	Total Haloacetic Acids (HAA5)	6009054	Returned to Compliance	01-JAN-2018	31-MAR-2018	Yes
MR	Failure Submit IDSE/Subpart V Plan Rpt	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	6009053	Returned to Compliance	31-OCT-2017	-	No
MR	Failure Submit IDSE/Subpart V Plan Rpt	Stage 2 Disinfectants and Disinfection Byproducts Rule	Total Haloacetic Acids (HAA5)	6009051	Returned to Compliance	31-OCT-2017	-	No
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	Total Haloacetic Acids (HAA5)	6009046	Returned to Compliance	01-OCT-2017	31-DEC-2017	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	6009049	Returned to Compliance	01-OCT-2017	31-DEC-2017	Yes
MR	Failure Submit IDSE/Subpart V Plan Rpt	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	6009050	Returned to Compliance	31-JUL-2017	-	No
MR	Failure Submit IDSE/Subpart V Plan Rpt	Stage 2 Disinfectants and Disinfection Byproducts Rule	Total Haloacetic Acids (HAA5)	6009052	Returned to Compliance	31-JUL-2017	-	No
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	6009045	Returned to Compliance	01-JUL-2017	30-SEP-2017	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	Total Haloacetic Acids (HAA5)	6009042	Returned to Compliance	01-JUL-2017	30-SEP-2017	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	6009040	Returned to Compliance	01-APR-2017	30-JUN-2017	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	Total Haloacetic Acids (HAA5)	6009039	Returned to Compliance	01-APR-2017	30-JUN-2017	Yes
MR	Failure Submit IDSE/Subpart V Plan Rpt	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	6009032	Returned to Compliance	31-JAN-2017	-	No
MR	Failure Submit IDSE/Subpart V Plan Rpt	Stage 2 Disinfectants and Disinfection Byproducts Rule	Total Haloacetic Acids (HAA5)	6009033	Returned to Compliance	31-JAN-2017	-	No
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	Total Haloacetic Acids (HAA5)	6009035	Returned to Compliance	01-JAN-2017	31-MAR-2017	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	6009037	Returned to Compliance	01-JAN-2017	31-MAR-2017	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	6009030	Returned to Compliance	01-OCT-2016	31-DEC-2016	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	Total Haloacetic Acids (HAA5)	6009027	Returned to Compliance	01-OCT-2016	31-DEC-2016	Yes

1 - 50 of 170

Enforcement Actions

Latest Enforcement ID	Associated To Violation ID	Enforcement Action Type Code	Enforcement Action Description	Enforcement Date	Originator Description	Enforcement Comment
6105486	6009075	SID	State Site Visit for enforcement purposes	24-OCT-2022	State	POIR for C-14-127-079-DDBP-M-I Item 10.) - I/C for control of DBPs
6105486	6009077	SID	State Site Visit for enforcement purposes	24-OCT-2022	State	POIR for C-14-127-079-DDBP-M-I Item 10.) - I/C for control of DBPs
6105486	6009078	SID	State Site Visit for enforcement purposes	24-OCT-2022	State	POIR for C-14-127-079-DDBP-M-I Item 10.) - I/C for control of DBPs
6105486	6009081	SID	State Site Visit for enforcement purposes	24-OCT-2022	State	POIR for C-14-127-079-DDBP-M-I Item 10.) - I/C for control of DBPs
6105486	6009083	SID	State Site Visit for enforcement purposes	24-OCT-2022	State	POIR for C-14-127-079-DDBP-M-I Item 10.) - I/C for control of DBPs
6105486	6009086	SID	State Site Visit for enforcement purposes	24-OCT-2022	State	POIR for C-14-127-079-DDBP-M-I Item 10.) - I/C for control of DBPs
6105486	6009088	SID	State Site Visit for enforcement purposes	24-OCT-2022	State	POIR for C-14-127-079-DDBP-M-I Item 10.) - I/C for control of DBPs
6105486	6009091	SID	State Site Visit for enforcement purposes	24-OCT-2022	State	POIR for C-14-127-079-DDBP-M-I Item 10.) - I/C for control of DBPs
6105486	6009093	SID	State Site Visit for enforcement purposes	24-OCT-2022	State	POIR for C-14-127-079-DDBP-M-I Item 10.) - I/C for control of DBPs
6105486	6009095	SID	State Site Visit for enforcement purposes	24-OCT-2022	State	POIR for C-14-127-079-DDBP-M-I Item 10.) - I/C for control of DBPs
6105486	6009096	SID	State Site Visit for enforcement purposes	24-OCT-2022	State	POIR for C-14-127-079-DDBP-M-I Item 10.) - I/C for control of DBPs
6105486	6009099	SID	State Site Visit for enforcement purposes	24-OCT-2022	State	POIR for C-14-127-079-DDBP-M-I Item 10.) - I/C for control of DBPs
6105486	6009101	SID	State Site Visit for enforcement purposes	24-OCT-2022	State	POIR for C-14-127-079-DDBP-M-I Item 10.) - I/C for control of DBPs
6105486	6009105	SID	State Site Visit for enforcement purposes	24-OCT-2022	State	POIR for C-14-127-079-DDBP-M-I Item 10.) - I/C for control of DBPs
6105486	6009107	SID	State Site Visit for enforcement purposes	24-OCT-2022	State	POIR for C-14-127-079-DDBP-M-I Item 10.) - I/C for control of DBPs
6105486	6009110	SID	State Site Visit for enforcement purposes	24-OCT-2022	State	POIR for C-14-127-079-DDBP-M-I Item 10.) - I/C for control of DBPs
6105486	6009111	SID	State Site Visit for enforcement purposes	24-OCT-2022	State	POIR for C-14-127-079-DDBP-M-I Item 10.) - I/C for control of DBPs
6105486	6009114	SID	State Site Visit for enforcement purposes	24-OCT-2022	State	POIR for C-14-127-079-DDBP-M-I Item 10.) - I/C for control of DBPs
6105486	6009115	SID	State Site Visit for enforcement purposes	24-OCT-2022	State	POIR for C-14-127-079-DDBP-M-I Item 10.) - I/C for control of DBPs
6105486	6009118	SID	State Site Visit for enforcement purposes	24-OCT-2022	State	POIR for C-14-127-079-DDBP-M-I Item 10.) - I/C for control of DBPs
6105486	6006505	SID	State Site Visit for enforcement purposes	24-OCT-2022	State	POIR for C-14-127-079-DDBP-M-I Item 10.) - I/C for control of DBPs
6105486	6006605	SID	State Site Visit for enforcement purposes	24-OCT-2022	State	POIR for C-14-127-079-DDBP-M-I Item 10.) - I/C for control of DBPs
6105486	6007105	SID	State Site Visit for enforcement purposes	24-OCT-2022	State	POIR for C-14-127-079-DDBP-M-I Item 10.) - I/C for control of DBPs
6105486	6007506	SID	State Site Visit for enforcement purposes	24-OCT-2022	State	POIR for C-14-127-079-DDBP-M-I Item 10.) - I/C for control of DBPs
6105486	6007706	SID	State Site Visit for enforcement purposes	24-OCT-2022	State	POIR for C-14-127-079-DDBP-M-I Item 10.) - I/C for control of DBPs
6105486	6008206	SID	State Site Visit for enforcement purposes	24-OCT-2022	State	POIR for C-14-127-079-DDBP-M-I Item 10.) - I/C for control of DBPs
6105486	6008406	SID	State Site Visit for enforcement purposes	24-OCT-2022	State	POIR for C-14-127-079-DDBP-M-I Item 10.) - I/C for control of DBPs
6105486	6008507	SID	State Site Visit for enforcement purposes	24-OCT-2022	State	POIR for C-14-127-079-DDBP-M-I Item 10.) - I/C for control of DBPs
6105486	6008707	SID	State Site Visit for enforcement purposes	24-OCT-2022	State	POIR for C-14-127-079-DDBP-M-I Item 10.) - I/C for control of DBPs
6105486	6008907	SID	State Site Visit for enforcement purposes	24-OCT-2022	State	POIR for C-14-127-079-DDBP-M-I Item 10.) - I/C for control of DBPs
6105486	6008908	SID	State Site Visit for enforcement purposes	24-OCT-2022	State	POIR for C-14-127-079-DDBP-M-I Item 10.) - I/C for control of DBPs
6105486	6008909	SID	State Site Visit for enforcement purposes	24-OCT-2022	State	POIR for C-14-127-079-DDBP-M-I Item 10.) - I/C for control of DBPs
6105486	6008912	SID	State Site Visit for enforcement purposes	24-OCT-2022	State	POIR for C-14-127-079-DDBP-M-I Item 10.) - I/C for control of DBPs
6105486	6008913	SID	State Site Visit for enforcement purposes	24-OCT-2022	State	POIR for C-14-127-079-DDBP-M-I Item 10.) - I/C for control of DBPs
6105486	6008928	SID	State Site Visit for enforcement purposes	24-OCT-2022	State	POIR for C-14-127-079-DDBP-M-I Item 10.) - I/C for control of DBPs
6105486	6008929	SID	State Site Visit for enforcement purposes	24-OCT-2022	State	POIR for C-14-127-079-DDBP-M-I Item 10.) - I/C for control of DBPs
6105486	6008930	SID	State Site Visit for enforcement purposes	24-OCT-2022	State	POIR for C-14-127-079-DDBP-M-I Item 10.) - I/C for control of DBPs
6105486	6008931	SID	State Site Visit for enforcement purposes	24-OCT-2022	State	POIR for C-14-127-079-DDBP-M-I Item 10.) - I/C for control of DBPs
6105486	6008932	SID	State Site Visit for enforcement purposes	24-OCT-2022	State	POIR for C-14-127-079-DDBP-M-I Item 10.) - I/C for control of DBPs
6105486	6008933	SID	State Site Visit for enforcement purposes	24-OCT-2022	State	POIR for C-14-127-079-DDBP-M-I Item 10.) - I/C for control of DBPs
6105486	6008934	SID	State Site Visit for enforcement purposes	24-OCT-2022	State	POIR for C-14-127-079-DDBP-M-I Item 10.) - I/C for control of DBPs
6105486	6008942	SID	State Site Visit for enforcement purposes	24-OCT-2022	State	POIR for C-14-127-079-DDBP-M-I Item 10.) - I/C for control of DBPs
6105486	6008943	SID	State Site Visit for enforcement purposes	24-OCT-2022	State	POIR for C-14-127-079-DDBP-M-I Item 10.) - I/C for control of DBPs
6105486	6008944	SID	State Site Visit for enforcement purposes	24-OCT-2022	State	POIR for C-14-127-079-DDBP-M-I Item 10.) - I/C for control of DBPs
6105486	6008945	SID	State Site Visit for enforcement purposes	24-OCT-2022	State	POIR for C-14-127-079-DDBP-M-I Item 10.) - I/C for control of DBPs
6105486	6008955	SID	State Site Visit for enforcement purposes	24-OCT-2022	State	POIR for C-14-127-079-DDBP-M-I Item 10.) - I/C for control of DBPs
6105486	6008956	SID	State Site Visit for enforcement purposes	24-OCT-2022	State	POIR for C-14-127-079-DDBP-M-I Item 10.) - I/C for control of DBPs
6105486	6008957	SID	State Site Visit for enforcement purposes	24-OCT-2022	State	POIR for C-14-127-079-DDBP-M-I Item 10.) - I/C for control of DBPs
6105486	6008958	SID	State Site Visit for enforcement purposes	24-OCT-2022	State	POIR for C-14-127-079-DDBP-M-I Item 10.) - I/C for control of DBPs
6105486	6008961	SID	State Site Visit for enforcement purposes	24-OCT-2022	State	POIR for C-14-127-079-DDBP-M-I Item 10.) - I/C for control of DBPs

1 - 50 of 169

All Facilities

Facility Name	Facility ID	Is Source	Facility Type Description	Water Type Description	Availability Description	Facility Activity Status
Z-CC BUYS FROM LA1127010	18177	Yes	Consecutive Connection	Ground water	Permanent	Inactive
WELL 1	8313	Yes	Well	Ground water	Permanent	Active
WELL 2	21882	Yes	Well	Ground water	Permanent	Active
DISTRIBUTION SYSTEM	9411	No	Distribution System/Zone	-	-	Active
Z-STAGE2 IDSE	17490	No	Distribution System/Zone	-	-	Inactive
PUMPS AT TREATMENT PLANT	22081	No	Pump Facility	-	-	Active
Z-PUMPS @ GST @ BOOSTER STATION	21398	No	Pump Facility	-	-	Inactive
GROUND AT TREATMENT PLANT	22080	No	Storage	-	-	Active
STAND PIPE	514	No	Storage	-	-	Active
Z-GROUND AT BOOSTER STATION	18228	No	Storage	-	-	Inactive
DISINFECTION WELL 1 AND 2	21908	No	Treatment Plant	-	-	Active
Z-CHLORINATION AT BOOSTER STATION	18229	No	Treatment Plant	-	-	Inactive
Z-DISINFECTION WELL 1	4578	No	Treatment Plant	-	-	Inactive

1 - 13 of 13

Treatment Processes

Facility Name	Facility ID	Treatment Process	Treatment Objective
Z-CHLORINATION AT BOOSTER STATION	18229	Gaseous Chlorination, Post	Disinfection
DISINFECTION WELL 1 AND 2	21908	Aeration, Spray	Disinfection by-products control
DISINFECTION WELL 1 AND 2	21908	Gaseous Chlorination, Pre	Disinfection
DISINFECTION WELL 1 AND 2	21908	Chloramines	Disinfection
Z-DISINFECTION WELL 1	4578	Gaseous Chlorination, Pre	Disinfection

1 - 5 of 5

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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