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Your Drinking Water Query results from SDWIS Fed Reporting Services

PWS ID	PA4410173
PWS Name	WILLIAMSPORT MUN WATER AUTH
PWS Type	Community water system
Owner Type	Local government
Primary Source	Surface water
Primacy Type	State
Is Wholesaler?	No
Population Served	51000
County Served	Lycoming

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
MR	Monitoring and Reporting (DBP)	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	1907613	Returned to Compliance	01-OCT-2018	31-DEC-2018	No
MR	Monitoring and Reporting (DBP)	Stage 2 Disinfectants and Disinfection Byproducts Rule	Total Haloacetic Acids (HAA5)	1907612	Returned to Compliance	01-OCT-2018	31-DEC-2018	No
MR	Monitoring and Reporting (DBP)	Stage 2 Disinfectants and Disinfection Byproducts Rule	Total Haloacetic Acids (HAA5)	1831185	Returned to Compliance	01-JUL-2018	30-SEP-2018	No
MR	Monitoring and Reporting (DBP)	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	1831186	Returned to Compliance	01-JUL-2018	30-SEP-2018	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Carbon tetrachloride	1309582	Returned to Compliance	01-OCT-2012	31-DEC-2012	No
MR	Monitoring, Regular	Volatile Organic Chemicals	cis-1,2-Dichloroethylene	1309573	Returned to Compliance	01-OCT-2012	31-DEC-2012	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Xylenes, Total	1309574	Returned to Compliance	01-OCT-2012	31-DEC-2012	No
MR	Monitoring, Regular	Volatile Organic Chemicals	DICHLOROMETHANE	1309575	Returned to Compliance	01-OCT-2012	31-DEC-2012	No
MR	Monitoring, Regular	Volatile Organic Chemicals	o-Dichlorobenzene	1309576	Returned to Compliance	01-OCT-2012	31-DEC-2012	No
MR	Monitoring, Regular	Volatile Organic Chemicals	p-Dichlorobenzene	1309577	Returned to Compliance	01-OCT-2012	31-DEC-2012	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,1-Dichloroethylene	1309578	Returned to Compliance	01-OCT-2012	31-DEC-2012	No
MR	Monitoring, Regular	Volatile Organic Chemicals	trans-1,2-Dichloroethylene	1309579	Returned to Compliance	01-OCT-2012	31-DEC-2012	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,2,4-Trichlorobenzene	1309572	Returned to Compliance	01-OCT-2012	31-DEC-2012	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Styrene	1309591	Returned to Compliance	01-OCT-2012	31-DEC-2012	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Ethylbenzene	1309590	Returned to Compliance	01-OCT-2012	31-DEC-2012	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Toluene	1309589	Returned to Compliance	01-OCT-2012	31-DEC-2012	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Benzene	1309588	Returned to Compliance	01-OCT-2012	31-DEC-2012	No
MR	Monitoring, Regular	Volatile Organic Chemicals	CHLOROBENZENE	1309587	Returned to Compliance	01-OCT-2012	31-DEC-2012	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Tetrachloroethylene	1309586	Returned to Compliance	01-OCT-2012	31-DEC-2012	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,1,2-Trichloroethane	1309585	Returned to Compliance	01-OCT-2012	31-DEC-2012	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Trichloroethylene	1309584	Returned to Compliance	01-OCT-2012	31-DEC-2012	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,2-Dichloropropane	1309583	Returned to Compliance	01-OCT-2012	31-DEC-2012	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,1,1-Trichloroethane	1309581	Returned to Compliance	01-OCT-2012	31-DEC-2012	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,2-Dichloroethane	1309580	Returned to Compliance	01-OCT-2012	31-DEC-2012	No
MCL	Maximum Contaminant Level Violation, Average	Former Total Trihalomethane Rule	TTHM	8542003	Known	01-JUL-1985	30-SEP-1985	Yes
MR	Monitoring, Regular	Inorganic Chemicals	Barium	8524291	Known	25-JUN-1984	24-JUN-1985	No
MR	Monitoring, Regular	Inorganic Chemicals	Cadmium	8524290	Known	25-JUN-1984	24-JUN-1985	No
MR	Monitoring, Regular	Inorganic Chemicals	Mercury	8524294	Known	25-JUN-1984	24-JUN-1985	No
MR	Monitoring, Regular	Inorganic Chemicals	Selenium	8524293	Known	25-JUN-1984	24-JUN-1985	No
MR	Monitoring, Regular	Arsenic Rule	Arsenic	8524288	Known	25-JUN-1984	24-JUN-1985	No
MR	Monitoring, Regular	Inorganic Chemicals	Chromium	8417573	Known	25-JUN-1983	24-JUN-1984	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Endrin	8524289	Known	24-JUN-1982	23-JUN-1985	No

1 - 32 of 32

Enforcement Actions

Latest Enforcement ID	Associated To Violation ID	Enforcement Action Type Code	Enforcement Action Description	Enforcement Date	Originator Description	Enforcement Comment
210761256001	1907612	SOX	State Compliance achieved	21-DEC-2020	State	-
210761256001	1907613	SOX	State Compliance achieved	21-DEC-2020	State	-
203118551001	1831186	SOX	State Compliance achieved	13-DEC-2019	State	-
203118551001	1831185	SOX	State Compliance achieved	13-DEC-2019	State	-
130957219001	1309577	SOX	State Compliance achieved	20-MAY-2013	State	-
130957219001	1309578	SOX	State Compliance achieved	20-MAY-2013	State	-
130957219001	1309579	SOX	State Compliance achieved	20-MAY-2013	State	-
130957219001	1309580	SOX	State Compliance achieved	20-MAY-2013	State	-
130957219001	1309581	SOX	State Compliance achieved	20-MAY-2013	State	-
130957219001	1309582	SOX	State Compliance achieved	20-MAY-2013	State	-
130957219001	1309583	SOX	State Compliance achieved	20-MAY-2013	State	-
130957219001	1309584	SOX	State Compliance achieved	20-MAY-2013	State	-
130957219001	1309585	SOX	State Compliance achieved	20-MAY-2013	State	-
130957219001	1309586	SOX	State Compliance achieved	20-MAY-2013	State	-
130957219001	1309587	SOX	State Compliance achieved	20-MAY-2013	State	-
130957219001	1309588	SOX	State Compliance achieved	20-MAY-2013	State	-
130957219001	1309589	SOX	State Compliance achieved	20-MAY-2013	State	-
130957219001	1309590	SOX	State Compliance achieved	20-MAY-2013	State	-
130957219001	1309591	SOX	State Compliance achieved	20-MAY-2013	State	-
130957219001	1309576	SOX	State Compliance achieved	20-MAY-2013	State	-
130957219001	1309575	SOX	State Compliance achieved	20-MAY-2013	State	-
130957219001	1309574	SOX	State Compliance achieved	20-MAY-2013	State	-
130957219001	1309572	SOX	State Compliance achieved	20-MAY-2013	State	-
130957219001	1309573	SOX	State Compliance achieved	20-MAY-2013	State	-

1 - 24 of 24

All Facilities

Facility Name	Facility ID	Is Source	Facility Type Description	Water Type Description	Availability Description	Facility Activity Status
MOSQUITO CREEK RES	001	Yes	Intake	Surface water	Permanent	Active
WELL # 11	011	Yes	Well	Ground water	Permanent	Active
WELL # 10	010	Yes	Well	Ground water	Permanent	Active
WELL # 9	009	Yes	Well	Ground water	Permanent	Active
WELL # 8	008	Yes	Well	Ground water	Permanent	Active
WELL # 7	007	Yes	Well	Ground water	Permanent	Active
WELL # 6	006	Yes	Well	Ground water	Permanent	Active
WELL # 3	003	Yes	Well	Ground water	Permanent	Active
WELL # 5	005	Yes	Well	Ground water under the influence of surface water	Permanent	Active
WELL # 4	004	Yes	Well	Ground water under the influence of surface water	Permanent	Active
HAGERMAN RUN SCNHSE	002	Yes	Intake	Surface water	Permanent	Active
HELLER DAM	014	Yes	Intake	Surface water	Permanent	Active
YOUNGMAN DAM	015	Yes	Intake	Surface water	Permanent	Active
FILTER PLT-WATERDALE	101	No	Sampling Station	-	-	Active
WELLFIELD	103	No	Sampling Station	-	-	Active
2006 F LINER M2 112	107	No	Sampling Station	-	-	Active
THIRD STREET	303	No	Treatment Plant	-	-	Active
FILTER PLANT	305	No	Treatment Plant	-	-	Active

1 - 18 of 18

Treatment Processes

Facility Name	Facility ID	Treatment Process	Treatment Objective
THIRD STREET	303	Gaseous Chlorination, Post	Disinfection
THIRD STREET	303	pH Adjustment	Corrosion control
THIRD STREET	303	Inhibitor, Silicate	Corrosion control
THIRD STREET	303	Fluoridation	Other
THIRD STREET	303	Aeration, Packed Tower	Organics removal
THIRD STREET	303	4-Log Treatment of Viruses	Disinfection
FILTER PLANT	305	Gaseous Chlorination, Post	Disinfection
FILTER PLANT	305	Gaseous Chlorination, Pre	Disinfection
FILTER PLANT	305	pH Adjustment	Corrosion control
FILTER PLANT	305	Activated Carbon, Powdered	Taste / odor control
FILTER PLANT	305	Rapid Mix	Particulate removal
FILTER PLANT	305	Fluoridation	Other
FILTER PLANT	305	Flocculation	Particulate removal
FILTER PLANT	305	Sedimentation	Particulate removal
FILTER PLANT	305	Coagulation	Particulate removal
FILTER PLANT	305	Lime - Soda Ash Addition	Particulate removal
FILTER PLANT	305	pH Adjustment, Pre	Particulate removal
FILTER PLANT	305	Filtration, Rapid Sand	Particulate removal
FILTER PLANT	305	Sludge Treatment	Particulate removal
FILTER PLANT	305	Innovative	Other

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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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