Safe Drinking Water Information System (SDWIS) Federal Reporting Services

Your Drinking Water Query results from SDWIS Fed Reporting Services

PWS ID	PA1460048
PWS Name	NORTH WALES WATER AUTHORITY
PWS Type	Community water system
Owner Type	Local government
Primary Source	Surface water
Primacy Type	State
Is Wholesaler?	No
Population Served	72496
County Served	Montgomery

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	Total Haloacetic Acids (HAA5)	2520561	Known	01-APR-2025	30-JUN-2025	No
MR	Monitoring of Treatment (SWTR-Unfilt/GWR)	Ground Water Rule	Groundwater Rule	2514612	Returned to Compliance	01-MAR-2025	31-MAR-2025	No
MR	Monitoring of Treatment (SWTR-Unfilt/GWR)	Ground Water Rule	Groundwater Rule	2232811	Returned to Compliance	01-JUL-2022	31-JUL-2022	No
MR	Monitoring of Treatment (SWTR-Unfilt/GWR)	Ground Water Rule	Groundwater Rule	2222357	Returned to Compliance	01-APR-2022	30-APR-2022	No
MR	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	Surface Water Treatment Rule	2131397	Returned to Compliance	01-SEP-2021	30-SEP-2021	No
MR	Monitoring of Treatment (SWTR-Unfilt/GWR)	Ground Water Rule	Groundwater Rule	2131396	Returned to Compliance	01-SEP-2021	30-SEP-2021	No
MR	Monitoring, Turbidity (Enhanced SWTR)	Interim and Long Term 1 Enhanced Surface Water Treatment Rule	Interim Enhanced Surface Water Treatment Rule	2131398	Returned to Compliance	01-SEP-2021	30-SEP-2021	No
MR	Monitoring of Treatment (SWTR-Unfilt/GWR)	Ground Water Rule	Groundwater Rule	2129596	Returned to Compliance	01-AUG-2021	31-AUG-2021	No
MR	Monitoring, Turbidity (Enhanced SWTR)	Interim and Long Term 1 Enhanced Surface Water Treatment Rule	Interim Enhanced Surface Water Treatment Rule	2127506	Returned to Compliance	01-JUL-2021	31-JUL-2021	No
MR	Monitoring of Treatment (SWTR-Unfilt/GWR)	Ground Water Rule	Groundwater Rule	2120710	Returned to Compliance	01-MAY-2021	31-MAY-2021	No
MR	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	Surface Water Treatment Rule	2113426	Returned to Compliance	01-FEB-2021	28-FEB-2021	No
MR	Monitoring, Turbidity (Enhanced SWTR)	Interim and Long Term 1 Enhanced Surface Water Treatment Rule	Interim Enhanced Surface Water Treatment Rule	1935848	Returned to Compliance	01-SEP-2019	30-SEP-2019	No
MR	Monitoring of Treatment (SWTR-Unfilt/GWR)	Ground Water Rule	Groundwater Rule	1914141	Returned to Compliance	01-MAR-2019	31-MAR-2019	No
MR	Monitoring of Treatment (SWTR-Unfilt/GWR)	Ground Water Rule	Groundwater Rule	1829210	Returned to Compliance	01-SEP-2018	30-SEP-2018	No
MR	Monitoring of Treatment (SWTR-Unfilt/GWR)	Ground Water Rule	Groundwater Rule	1731787	Returned to Compliance	01-AUG-2017	31-AUG-2017	No
Other	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	Consumer Confidence Rule	1634492	Returned to Compliance	01-JUL-2016	-	No
MR	Monitoring of Treatment (SWTR-Unfilt/GWR)	Ground Water Rule	Groundwater Rule	1624914	Returned to Compliance	01-JUN-2016	30-JUN-2016	No
MR	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	Surface Water Treatment Rule	1337821	Returned to Compliance	01-JUL-2013	31-JUL-2013	No
MR	Monitoring, Turbidity (Enhanced SWTR)	Interim and Long Term 1 Enhanced Surface Water Treatment Rule	Interim Enhanced Surface Water Treatment Rule	1337822	Returned to Compliance	01-JUL-2013	31-JUL-2013	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	CARBON, TOTAL	0624912	Returned to Compliance	01-APR-2006	30-JUN-2006	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	CARBON, TOTAL	0524234	Returned to Compliance	01-JAN-2005	31-MAR-2005	No
MR	Monitoring, Regular	Nitrate Rule	Nitrate	0603168	Returned to Compliance	01-JAN-2005	31-DEC-2005	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	Total Haloacetic Acids (HAA5)	0524230	Returned to Compliance	01-JAN-2005	31-MAR-2005	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	TTHM	0524231	Returned to Compliance	01-JAN-2005	31-MAR-2005	No
MR	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	Surface Water Treatment Rule	0407668	Returned to Compliance	01-DEC-2003	31-DEC-2003	No
MR	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	Surface Water Treatment Rule	0401799	Returned to Compliance	01-OCT-2003	31-OCT-2003	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	Total Haloacetic Acids (HAA5)	0407667	Returned to Compliance	01-OCT-2003	31-DEC-2003	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	Chlorine	0407666	Returned to Compliance	01-OCT-2003	31-DEC-2003	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	Total Haloacetic Acids (HAA5)	0401798	Returned to Compliance	01-JUL-2003	30-SEP-2003	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	Total Haloacetic Acids (HAA5)	0401797	Returned to Compliance	01-APR-2003	30-JUN-2003	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Di(2-ethylhexyl) adipate	9642868	Returned to Compliance	01-APR-1996	30-JUN-1996	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Di(2-ethylhexyl) phthalate	9642869	Returned to Compliance	01-APR-1996	30-JUN-1996	No
MR	Monitoring, Regular	Nitrate Rule	Nitrate	9704153	Returned to Compliance	01-JAN-1996	31-DEC-1996	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Di(2-ethylhexyl) phthalate	9585357	Returned to Compliance	01-APR-1995	30-JUN-1995	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Di(2-ethylhexyl) adipate	9585356	Returned to Compliance	01-APR-1995	30-JUN-1995	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Benzo(a)pyrene	9585358	Returned to Compliance	01-APR-1995	30-JUN-1995	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Di(2-ethylhexyl) phthalate	9565664	Returned to Compliance	01-JAN-1995	31-MAR-1995	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Benzo(a)pyrene	9565665	Returned to Compliance	01-JAN-1995	31-MAR-1995	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Di(2-ethylhexyl) adipate	9565663	Returned to Compliance	01-JAN-1995	31-MAR-1995	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,2-Dichloropropane	9423308	Returned to Compliance	01-JAN-1994	31-MAR-1994	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Carbon tetrachloride	9423307	Returned to Compliance	01-JAN-1994	31-MAR-1994	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,1,1-Trichloroethane	9423306	Returned to Compliance	01-JAN-1994	31-MAR-1994	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,2-Dichloroethane	9423305	Returned to Compliance	01-JAN-1994	31-MAR-1994	No
MR	Monitoring, Regular	Volatile Organic Chemicals	trans-1,2-Dichloroethylene	9423304	Returned to Compliance	01-JAN-1994	31-MAR-1994	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,1-Dichloroethylene	9423303	Returned to Compliance	01-JAN-1994	31-MAR-1994	No
MR	Monitoring, Regular	Volatile Organic Chemicals	p-Dichlorobenzene	9423302	Returned to Compliance	01-JAN-1994	31-MAR-1994	No
MR	Monitoring, Regular	Volatile Organic Chemicals	o-Dichlorobenzene	9423301	Returned to Compliance	01-JAN-1994	31-MAR-1994	No
MR	Monitoring, Regular	Volatile Organic Chemicals	DICHLOROMETHANE	9423300	Returned to Compliance	01-JAN-1994	31-MAR-1994	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Xylenes, Total	9423299	Returned to Compliance	01-JAN-1994	31-MAR-1994	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Trichloroethylene	9423309	Returned to Compliance	01-JAN-1994	31-MAR-1994	No

1 - 50 of 120

Enforcement Actions

Latest Enforcement ID	Associated To Violation ID	Enforcement Action Type Code	Enforcement Action Description	Enforcement Date	Originator Description	Enforcement Comment
25205611002	2520561	SIE	State Public Notification requested	28-JUL-2025	State	-
25146122001	2514612	SOX	State Compliance achieved	21-MAY-2025	State	-
223281174002	2232811	SOX	State Compliance achieved	29-AUG-2022	State	-
222235774001	2222357	SOX	State Compliance achieved	24-MAY-2022	State	-
222750668001	2127506	SOX	State Compliance achieved	09-DEC-2021	State	-
223139768004	2131397	SOX	State Compliance achieved	09-NOV-2021	State	-
223139768004	2131398	SOX	State Compliance achieved	09-NOV-2021	State	-
223139668003	2131396	SOX	State Compliance achieved	04-NOV-2021	State	-
212959668006	2129596	SOX	State Compliance achieved	27-SEP-2021	State	-
212071068003	2120710	SOX	State Compliance achieved	20-JUL-2021	State	-
211342668002	2113426	SOX	State Compliance achieved	30-JUN-2021	State	-
203584856001	1935848	SOX	State Compliance achieved	14-NOV-2019	State	-
191414156001	1914141	SOX	State Compliance achieved	13-MAY-2019	State	-
192921050001	1829210	SOX	State Compliance achieved	20-NOV-2018	State	-
183178744002	1731787	SOX	State Compliance achieved	14-AUG-2018	State	-
172491438001	1624914	SOX	State Compliance achieved	16-JUN-2017	State	-
173449238002	1634492	SOX	State Compliance achieved	22-NOV-2016	State	-
143782120001	1337821	SOX	State Compliance achieved	04-NOV-2013	State	-
143782120001	1337822	SOX	State Compliance achieved	04-NOV-2013	State	-
062491267007	0624912	SOX	State Compliance achieved	06-SEP-2006	State	-
060316867001	0603168	SOX	State Compliance achieved	28-APR-2006	State	-
052423061001	0524234	SOX	State Compliance achieved	10-AUG-2005	State	-
052423061001	0524230	SOX	State Compliance achieved	10-AUG-2005	State	-
052423061001	0524231	SOX	State Compliance achieved	10-AUG-2005	State	-
050179755002	0401798	SOX	State Compliance achieved	26-JAN-2005	State	-
050179755002	0401797	SOX	State Compliance achieved	26-JAN-2005	State	-
050179755002	0401799	SOX	State Compliance achieved	26-JAN-2005	State	-
050179755002	0407667	SOX	State Compliance achieved	26-JAN-2005	State	-
050179755002	0407668	SOX	State Compliance achieved	26-JAN-2005	State	-
050179755002	0407666	SOX	State Compliance achieved	26-JAN-2005	State	-
97E0002	9704153	SOX	State Compliance achieved	01-AUG-1997	State	-
96E0003	9642868	SOX	State Compliance achieved	01-JAN-1997	State	-
96E0003	9642869	SOX	State Compliance achieved	01-JAN-1997	State	-
95E0002	9585358	SOX	State Compliance achieved	27-DEC-1995	State	-
95E0002	9585357	SOX	State Compliance achieved	27-DEC-1995	State	-
95E0002	9585356	SOX	State Compliance achieved	27-DEC-1995	State	-
95E0002	9565665	SOX	State Compliance achieved	27-DEC-1995	State	-
95E0002	9565664	SOX	State Compliance achieved	27-DEC-1995	State	-
95E0002	9565663	SOX	State Compliance achieved	27-DEC-1995	State	-
94E0001	9423297	SOX	State Compliance achieved	20-JUL-1994	State	-
94E0001	9423298	SOX	State Compliance achieved	20-JUL-1994	State	-
94E0001	9423299	SOX	State Compliance achieved	20-JUL-1994	State	-
94E0001	9423300	SOX	State Compliance achieved	20-JUL-1994	State	-
94E0001	9423301	SOX	State Compliance achieved	20-JUL-1994	State	-
94E0001	9423302	SOX	State Compliance achieved	20-JUL-1994	State	-
94E0001	9423303	SOX	State Compliance achieved	20-JUL-1994	State	-
94E0001	9423304	SOX	State Compliance achieved	20-JUL-1994	State	-
94E0001	9423305	SOX	State Compliance achieved	20-JUL-1994	State	-
94E0001	9423306	SOX	State Compliance achieved	20-JUL-1994	State	-
94E0001	9423307	SOX	State Compliance achieved	20-JUL-1994	State	-

1 - 50 of 107

All Facilities

Facility Name	Facility ID	Is Source	Facility Type Description	Water Type Description	Availability Description	Facility Activity Status
NPWA INCT	038	Yes	Consecutive Connection	Surface water	Emergency	Active
WELL #34	022	Yes	Well	Ground water	Permanent	Active
WELL #25	019	Yes	Well	Ground water	Permanent	Active
WELL #21	016	Yes	Well	Ground water	Permanent	Active
WELL #14	010	Yes	Well	Ground water	Permanent	Active
WELL #11	009	Yes	Well	Ground water	Permanent	Active
WELL #10	008	Yes	Well	Ground water	Permanent	Active
WELL #9	007	Yes	Well	Ground water	Permanent	Active
WELL #8	006	Yes	Well	Ground water	Permanent	Active
WELL #4	003	Yes	Well	Ground water	Permanent	Active
WELL #1	001	Yes	Well	Ground water	Permanent	Active
WELL #50	027	Yes	Well	Ground water	Other	Inactive
WELL #47	026	Yes	Well	Ground water	Other	Inactive
WELL #46	025	Yes	Well	Ground water	Other	Inactive
WELL #38	024	Yes	Well	Ground water	Other	Inactive
WELL #35	023	Yes	Well	Ground water	Other	Inactive
WELL #33	021	Yes	Well	Ground water	Other	Inactive
WELL #23	018	Yes	Well	Ground water	Other	Inactive
WELL #20	015	Yes	Well	Ground water	Other	Inactive
WELL #16	013	Yes	Well	Ground water	Other	Inactive
WELL #13	012	Yes	Well	Ground water	Other	Inactive
WELL #12	011	Yes	Well	Ground water	Other	Inactive
WELL #7	005	Yes	Well	Ground water	Other	Inactive
WELL #5	004	Yes	Well	Ground water	Other	Inactive
WELL #3	002	Yes	Well	Ground water	Other	Inactive
WELL #31	020	Yes	Well	Ground water	Interim	Active
WELL #22	017	Yes	Well	Ground water	Interim	Active
WELL #17	014	Yes	Well	Ground water	Interim	Active
AQUA INTC 2	030	Yes	Consecutive Connection	Surface water	Emergency	Inactive
WARRINGTON TWP INTC	032	Yes	Consecutive Connection	Ground water	Other	Inactive
WARRINTONWARMIN INTC	033	Yes	Consecutive Connection	Ground water	Other	Inactive
HORSHAM INTC 2	034	Yes	Consecutive Connection	Ground water	Other	Inactive
HORSHAM INTC 1	035	Yes	Consecutive Connection	Ground water	Other	Inactive
AQUA INTC 1	029	Yes	Consecutive Connection	Surface water	Other	Inactive
PA AM NORRISTOWN	036	Yes	Consecutive Connection	Surface water	Other	Inactive
AMBLER BORO INTC	037	Yes	Consecutive Connection	Surface water	Other	Inactive
DOYLESTOWN TWP INTC	031	Yes	Consecutive Connection	Ground water	Permanent	Active
FOREST PARK WATER	028	Yes	Intake	Surface water	Permanent	Active
WELL #4	102	No	Sampling Station	-	-	Active
WELLS 8,9,10,11,14	105	No	Sampling Station	-	-	Active
WELL #17	109	No	Sampling Station	-	-	Active
WELL #21	111	No	Sampling Station	-	-	Active
WELL #22	112	No	Sampling Station	-	-	Active
WELL #25	114	No	Sampling Station	-	-	Active
WELL #31	115	No	Sampling Station	-	-	Active
WELL #34	117	No	Sampling Station	-	-	Active
WELL #1	120	No	Sampling Station	-	-	Active
FOREST PARK INTERCON	124	No	Sampling Station	-	-	Active
NPWA CHURCH RD INTC	129	No	Sampling Station	-	-	Active
WELL #3	101	No	Sampling Station	-	-	Inactive

1 - 50 of 94

Treatment Processes

Facility Name	Facility ID	Treatment Process	Treatment Objective
WELL #1	300	Hypochlorination, Post	Disinfection
WELL #1	300	4-Log Treatment of Viruses	Disinfection
WELL #4	302	Hypochlorination, Post	Disinfection
WELL #4	302	4-Log Treatment of Viruses	Disinfection
WELLS 8 9 10 11 14	305	Gaseous Chlorination, Post	Disinfection
WELLS 8 9 10 11 14	305	4-Log Treatment of Viruses	Disinfection
WELL #17	309	Hypochlorination, Post	Disinfection
WELL #17	309	Sequestration	Iron removal
WELL #17	309	Sequestration	Manganese removal
WELL #21	311	Hypochlorination, Post	Disinfection
WELL #21	311	4-Log Treatment of Viruses	Disinfection
WELL #22	312	Hypochlorination, Post	Disinfection
WELL #22	312	Sequestration	Iron removal
WELL #22	312	Sequestration	Manganese removal
WELL #25	314	Hypochlorination, Post	Disinfection
WELL #25	314	4-Log Treatment of Viruses	Disinfection
WELL #31	315	Hypochlorination, Post	Disinfection
WELL #34	317	Hypochlorination, Post	Disinfection
WELL #34	317	4-Log Treatment of Viruses	Disinfection
FOREST PARK INTERCON	323	Permanganate	Taste / odor control
FOREST PARK INTERCON	323	Activated Carbon, Powdered	Taste / odor control
FOREST PARK INTERCON	323	Hypochlorination, Pre	Disinfection
FOREST PARK INTERCON	323	Ozonation, Pre	Taste / odor control
FOREST PARK INTERCON	323	Lime - Soda Ash Addition	Particulate removal
FOREST PARK INTERCON	323	Rapid Mix	Particulate removal
FOREST PARK INTERCON	323	Flocculation	Particulate removal
FOREST PARK INTERCON	323	Sedimentation	Particulate removal
FOREST PARK INTERCON	323	Hypochlorination, Pre	Disinfection
FOREST PARK INTERCON	323	Filtration, Ultrafiltration	Particulate removal
FOREST PARK INTERCON	323	Ozonation, Post	Disinfection by-products control
FOREST PARK INTERCON	323	Activated Carbon, Granular	Organics removal
FOREST PARK INTERCON	323	Inhibitor, Polyphosphate	Corrosion control
FOREST PARK INTERCON	323	pH Adjustment, Post	Corrosion control
FOREST PARK INTERCON	323	Hypochlorination, Post	Disinfection
FOREST PARK INTERCON	323	Coagulation	Particulate removal
NORTHWALESUPPERDUBL2	324	Hypochlorination, Post	Disinfection
NORTH WALES TANKS	325	Gaseous Chlorination, Post	Disinfection
SUSQUEHANNA RD TANK	326	Hypochlorination, Post	Disinfection
MONT TO NW CL2 BOOST	327	Hypochlorination, Post	Disinfection
KINDLE HILL CL2BOOST	328	Hypochlorination, Post	Disinfection

1 - 40 of 40

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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