Safe Drinking Water Information System (SDWIS) Federal Reporting Services

Your Drinking Water Query results from SDWIS Fed Reporting Services

PWS ID	MD0060007
PWS Name	TOWN OF MOUNT AIRY
PWS Type	Community water system
Owner Type	Local government
Primary Source	Ground water
Primacy Type	State
Is Wholesaler?	No
Population Served	9890
County Served	Carroll

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	Lead Consumer Notice	Lead and Copper Rule	Lead and Copper Rule	65	Returned to Compliance	01-JAN-2025	-	No
MR	Monitoring, Regular	Inorganic Chemicals	Fluoride	63	Returned to Compliance	01-JAN-2022	31-DEC-2024	No
MR	Monitoring, Regular	Inorganic Chemicals	Fluoride	64	Returned to Compliance	01-JAN-2022	31-DEC-2024	No
MR	Follow-up Or Routine LCR Tap M/R	Lead and Copper Rule	Lead and Copper Rule	58	Returned to Compliance	01-OCT-2021	-	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	TTHM	54	Returned to Compliance	01-JAN-2010	31-DEC-2010	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	Total Haloacetic Acids (HAA5)	55	Returned to Compliance	01-JAN-2010	31-DEC-2010	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Tetrachloroethylene	37	Returned to Compliance	01-JAN-2001	31-DEC-2001	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,1,2-Trichloroethane	36	Returned to Compliance	01-JAN-2001	31-DEC-2001	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Trichloroethylene	35	Returned to Compliance	01-JAN-2001	31-DEC-2001	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,2-Dichloropropane	34	Returned to Compliance	01-JAN-2001	31-DEC-2001	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Carbon tetrachloride	33	Returned to Compliance	01-JAN-2001	31-DEC-2001	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,1,1-Trichloroethane	32	Returned to Compliance	01-JAN-2001	31-DEC-2001	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,2-Dichloroethane	31	Returned to Compliance	01-JAN-2001	31-DEC-2001	No
MR	Monitoring, Regular	Volatile Organic Chemicals	trans-1,2-Dichloroethylene	30	Returned to Compliance	01-JAN-2001	31-DEC-2001	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,1-Dichloroethylene	29	Returned to Compliance	01-JAN-2001	31-DEC-2001	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Vinyl chloride	28	Returned to Compliance	01-JAN-2001	31-DEC-2001	No
MR	Monitoring, Regular	Volatile Organic Chemicals	p-Dichlorobenzene	27	Returned to Compliance	01-JAN-2001	31-DEC-2001	No
MR	Monitoring, Regular	Volatile Organic Chemicals	CHLOROBENZENE	38	Returned to Compliance	01-JAN-2001	31-DEC-2001	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Benzene	39	Returned to Compliance	01-JAN-2001	31-DEC-2001	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Toluene	40	Returned to Compliance	01-JAN-2001	31-DEC-2001	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Ethylbenzene	41	Returned to Compliance	01-JAN-2001	31-DEC-2001	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Styrene	42	Returned to Compliance	01-JAN-2001	31-DEC-2001	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,2,4-Trichlorobenzene	22	Returned to Compliance	01-JAN-2001	31-DEC-2001	No
MR	Monitoring, Regular	Volatile Organic Chemicals	o-Dichlorobenzene	26	Returned to Compliance	01-JAN-2001	31-DEC-2001	No
MR	Monitoring, Regular	Volatile Organic Chemicals	cis-1,2-Dichloroethylene	23	Returned to Compliance	01-JAN-2001	31-DEC-2001	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Xylenes, Total	24	Returned to Compliance	01-JAN-2001	31-DEC-2001	No
MR	Monitoring, Regular	Volatile Organic Chemicals	DICHLOROMETHANE	25	Returned to Compliance	01-JAN-2001	31-DEC-2001	No
MR	Monitoring, Regular	Inorganic Chemicals	Barium	02V0001	Known	01-JAN-1999	31-DEC-2001	No
MR	Monitoring, Regular	Inorganic Chemicals	Selenium	02V0006	Known	01-JAN-1999	31-DEC-2001	No
MR	Monitoring, Regular	Inorganic Chemicals	Thallium, Total	52	Returned to Compliance	01-JAN-1999	31-DEC-2001	No
MR	Monitoring, Regular	Inorganic Chemicals	Beryllium, Total	51	Returned to Compliance	01-JAN-1999	31-DEC-2001	No
MR	Monitoring, Regular	Inorganic Chemicals	Antimony, Total	50	Returned to Compliance	01-JAN-1999	31-DEC-2001	No
MR	Monitoring, Regular	Inorganic Chemicals	Selenium	53	Returned to Compliance	01-JAN-1999	31-DEC-2001	No
MR	Monitoring, Regular	Inorganic Chemicals	Nickel	49	Returned to Compliance	01-JAN-1999	31-DEC-2001	No
MR	Monitoring, Regular	Inorganic Chemicals	Mercury	48	Returned to Compliance	01-JAN-1999	31-DEC-2001	No
MR	Monitoring, Regular	Inorganic Chemicals	Fluoride	44	Returned to Compliance	01-JAN-1999	31-DEC-2001	No
MR	Monitoring, Regular	Inorganic Chemicals	Cadmium	46	Returned to Compliance	01-JAN-1999	31-DEC-2001	No
MR	Monitoring, Regular	Inorganic Chemicals	Barium	45	Returned to Compliance	01-JAN-1999	31-DEC-2001	No
MR	Monitoring, Regular	Arsenic Rule	Arsenic	43	Returned to Compliance	01-JAN-1999	31-DEC-2001	No
MR	Monitoring, Regular	Inorganic Chemicals	Chromium	02V0003	Known	01-JAN-1999	31-DEC-2001	No
MR	Monitoring, Regular	Inorganic Chemicals	Thallium, Total	02V0009	Known	01-JAN-1999	31-DEC-2001	No
MR	Monitoring, Regular	Inorganic Chemicals	Beryllium, Total	02V0008	Known	01-JAN-1999	31-DEC-2001	No
MR	Monitoring, Regular	Inorganic Chemicals	Antimony, Total	02V0007	Known	01-JAN-1999	31-DEC-2001	No
MR	Monitoring, Regular	Inorganic Chemicals	Nickel	02V0005	Known	01-JAN-1999	31-DEC-2001	No
MR	Monitoring, Regular	Inorganic Chemicals	Mercury	02V0004	Known	01-JAN-1999	31-DEC-2001	No
MR	Monitoring, Regular	Inorganic Chemicals	Cadmium	02V0002	Known	01-JAN-1999	31-DEC-2001	No
MR	Monitoring, Regular	Inorganic Chemicals	Chromium	47	Returned to Compliance	01-JAN-1999	31-DEC-2001	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,2,4-Trichlorobenzene	99V0001	Known	01-JAN-1996	31-DEC-1998	No
MR	Monitoring, Regular	Volatile Organic Chemicals	cis-1,2-Dichloroethylene	99V0002	Known	01-JAN-1996	31-DEC-1998	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Xylenes, Total	99V0003	Known	01-JAN-1996	31-DEC-1998	No

1 - 50 of 90

Enforcement Actions

Latest Enforcement ID	Associated To Violation ID	Enforcement Action Type Code	Enforcement Action Description	Enforcement Date	Originator Description	Enforcement Comment
24	63	SIF	State Public Notification received	30-JUN-2025	State	-
25	64	SIF	State Public Notification received	30-JUN-2025	State	-
26	65	SOX	State Compliance achieved	02-JAN-2025	State	LATE LSCN - LSCN for RT 2024 Pb/Cu report rec'd 1/2/25.
17	58	SOX	State Compliance achieved	11-OCT-2021	State	Late report (1 day late). June - September 2021 report due 10/10/2021 - rec'd by MDE on 10/11/2021.
16	55	SOX	State Compliance achieved	28-FEB-2011	State	ENFORCEMENTID :1151563;
15	54	SOX	State Compliance achieved	28-FEB-2011	State	ENFORCEMENTID :1151563;
6	51	SOX	State Compliance achieved	14-MAR-2002	State	ENFORCEMENTID :0228600; RESEND VIO & ENFS
6	50	SOX	State Compliance achieved	14-MAR-2002	State	ENFORCEMENTID :0228600; RESEND VIO & ENFS
6	49	SOX	State Compliance achieved	14-MAR-2002	State	ENFORCEMENTID :0228600; RESEND VIO & ENFS
6	48	SOX	State Compliance achieved	14-MAR-2002	State	ENFORCEMENTID :0228600; RESEND VIO & ENFS
6	47	SOX	State Compliance achieved	14-MAR-2002	State	ENFORCEMENTID :0228600; RESEND VIO & ENFS
6	46	SOX	State Compliance achieved	14-MAR-2002	State	ENFORCEMENTID :0228600; RESEND VIO & ENFS
6	45	SOX	State Compliance achieved	14-MAR-2002	State	ENFORCEMENTID :0228600; RESEND VIO & ENFS
10	44	SOX	State Compliance achieved	14-MAR-2002	State	ENFORCEMENTID :0228600; RESEND VIO & ENFS
9	43	SOX	State Compliance achieved	14-MAR-2002	State	ENFORCEMENTID :0228600; RESEND VIO & ENFS
5	42	SOX	State Compliance achieved	14-MAR-2002	State	ENFORCEMENTID :0228600; RESEND VIO & ENFS
5	41	SOX	State Compliance achieved	14-MAR-2002	State	ENFORCEMENTID :0228600; RESEND VIO & ENFS
5	40	SOX	State Compliance achieved	14-MAR-2002	State	ENFORCEMENTID :0228600; RESEND VIO & ENFS
5	35	SOX	State Compliance achieved	14-MAR-2002	State	ENFORCEMENTID :0228600; RESEND VIO & ENFS
5	38	SOX	State Compliance achieved	14-MAR-2002	State	ENFORCEMENTID :0228600; RESEND VIO & ENFS
5	37	SOX	State Compliance achieved	14-MAR-2002	State	ENFORCEMENTID :0228600; RESEND VIO & ENFS
5	36	SOX	State Compliance achieved	14-MAR-2002	State	ENFORCEMENTID :0228600; RESEND VIO & ENFS
5	22	SOX	State Compliance achieved	14-MAR-2002	State	ENFORCEMENTID :0228600; RESEND VIO & ENFS
5	23	SOX	State Compliance achieved	14-MAR-2002	State	ENFORCEMENTID :0228600; RESEND VIO & ENFS
5	24	SOX	State Compliance achieved	14-MAR-2002	State	ENFORCEMENTID :0228600; RESEND VIO & ENFS
5	25	SOX	State Compliance achieved	14-MAR-2002	State	ENFORCEMENTID :0228600; RESEND VIO & ENFS
5	26	SOX	State Compliance achieved	14-MAR-2002	State	ENFORCEMENTID :0228600; RESEND VIO & ENFS
5	27	SOX	State Compliance achieved	14-MAR-2002	State	ENFORCEMENTID :0228600; RESEND VIO & ENFS
5	28	SOX	State Compliance achieved	14-MAR-2002	State	ENFORCEMENTID :0228600; RESEND VIO & ENFS
5	29	SOX	State Compliance achieved	14-MAR-2002	State	ENFORCEMENTID :0228600; RESEND VIO & ENFS
5	30	SOX	State Compliance achieved	14-MAR-2002	State	ENFORCEMENTID :0228600; RESEND VIO & ENFS
5	31	SOX	State Compliance achieved	14-MAR-2002	State	ENFORCEMENTID :0228600; RESEND VIO & ENFS
5	32	SOX	State Compliance achieved	14-MAR-2002	State	ENFORCEMENTID :0228600; RESEND VIO & ENFS
5	33	SOX	State Compliance achieved	14-MAR-2002	State	ENFORCEMENTID :0228600; RESEND VIO & ENFS
5	34	SOX	State Compliance achieved	14-MAR-2002	State	ENFORCEMENTID :0228600; RESEND VIO & ENFS
6	52	SOX	State Compliance achieved	14-MAR-2002	State	ENFORCEMENTID :0228600; RESEND VIO & ENFS
6	53	SOX	State Compliance achieved	14-MAR-2002	State	ENFORCEMENTID :0228600; RESEND VIO & ENFS
5	39	SOX	State Compliance achieved	14-MAR-2002	State	ENFORCEMENTID :0228600; RESEND VIO & ENFS
4	21	SOX	State Compliance achieved	02-MAR-1999	State	ENFORCEMENTID :9915245;
4	20	SOX	State Compliance achieved	02-MAR-1999	State	ENFORCEMENTID :9915245;
4	19	SOX	State Compliance achieved	02-MAR-1999	State	ENFORCEMENTID :9915245;
4	18	SOX	State Compliance achieved	02-MAR-1999	State	ENFORCEMENTID :9915245;
4	17	SOX	State Compliance achieved	02-MAR-1999	State	ENFORCEMENTID :9915245;
4	16	SOX	State Compliance achieved	02-MAR-1999	State	ENFORCEMENTID :9915245;
4	15	SOX	State Compliance achieved	02-MAR-1999	State	ENFORCEMENTID :9915245;
4	14	SOX	State Compliance achieved	02-MAR-1999	State	ENFORCEMENTID :9915245;
4	13	SOX	State Compliance achieved	02-MAR-1999	State	ENFORCEMENTID :9915245;
4	12	SOX	State Compliance achieved	02-MAR-1999	State	ENFORCEMENTID :9915245;
4	11	SOX	State Compliance achieved	02-MAR-1999	State	ENFORCEMENTID :9915245;
4	10	SOX	State Compliance achieved	02-MAR-1999	State	ENFORCEMENTID :9915245;

1 - 50 of 60

All Facilities

Facility Name	Facility ID	Is Source	Facility Type Description	Water Type Description	Availability Description	Facility Activity Status
MT AIRY WELL 1 NOPERMIT	587	Yes	Well	Ground water	Permanent	Active
MT AIRY CL720333	592	Yes	Well	Ground water	Permanent	Inactive
MT AIRY CL814308	591	Yes	Well	Ground water	Permanent	Inactive
MT AIRY WELL 9 (ABELL KNOLL) FR880512	599	Yes	Well	Ground water	Permanent	Active
MT AIRY WELL 10 (BUFFALO RD) CL942615	598	Yes	Well	Ground water	Permanent	Active
MT AIRY WELL 8 (SUMMIT RIDGE) FR881971	597	Yes	Well	Ground water	Permanent	Active
WELL 11 (S. MAIN ST) CL951415	596	Yes	Well	Ground water	Permanent	Active
MT AIRY WELL 7 (TWIN RIDGE) FR881825	595	Yes	Well	Ground water	Permanent	Active
MT AIRY WELL 6 CL815072	594	Yes	Well	Ground water	Permanent	Active
MT AIRY WELL 5 CL680340	593	Yes	Well	Ground water	Permanent	Active
MT AIRY WELL 4 FR810090	590	Yes	Well	Ground water	Permanent	Active
MT AIRY WELL 3 FR880068	589	Yes	Well	Ground water	Permanent	Active
MT AIRY WELL 2 FR732380	588	Yes	Well	Ground water	Permanent	Active
DISTRIBUTION SYSTEM	8443	No	Distribution System/Zone	-	-	Active
STORAGE TANK	18732	No	Storage	-	-	Active
WTP PROSPECT WEST WELL 1 2 3 4	25823	No	Treatment Plant	-	-	Active
WTP WATERSVILLE EAST WELL 5 6	25824	No	Treatment Plant	-	-	Active
WTP WELLS 7 AND 11	25825	No	Treatment Plant	-	-	Active
WTP WELL SUMMIT RIDGE 8 AND 10	25826	No	Treatment Plant	-	-	Active
WTP WELL 9	25827	No	Treatment Plant	-	-	Active

1 - 20 of 20

Treatment Processes

Facility Name	Facility ID	Treatment Process	Treatment Objective
WTP PROSPECT WEST WELL 1 2 3 4	25823	Hypochlorination, Pre	Disinfection
WTP PROSPECT WEST WELL 1 2 3 4	25823	pH Adjustment	Corrosion control
WTP PROSPECT WEST WELL 1 2 3 4	25823	Fluoridation	Other
WTP WATERSVILLE EAST WELL 5 6	25824	Hypochlorination, Pre	Disinfection
WTP WATERSVILLE EAST WELL 5 6	25824	pH Adjustment	Corrosion control
WTP WATERSVILLE EAST WELL 5 6	25824	Fluoridation	Other
WTP WELLS 7 AND 11	25825	Hypochlorination, Pre	Disinfection
WTP WELLS 7 AND 11	25825	pH Adjustment	Corrosion control
WTP WELLS 7 AND 11	25825	Fluoridation	Other
WTP WELL SUMMIT RIDGE 8 AND 10	25826	Hypochlorination, Pre	Disinfection
WTP WELL SUMMIT RIDGE 8 AND 10	25826	pH Adjustment	Corrosion control
WTP WELL SUMMIT RIDGE 8 AND 10	25826	Ion Exchange	Inorganics removal
WTP WELL SUMMIT RIDGE 8 AND 10	25826	Sequestration	Manganese removal
WTP WELL SUMMIT RIDGE 8 AND 10	25826	Fluoridation	Other
WTP WELL SUMMIT RIDGE 8 AND 10	25826	Ion Exchange	Other
WTP WELL 9	25827	Hypochlorination, Post	Disinfection
WTP WELL 9	25827	pH Adjustment	Corrosion control
WTP WELL 9	25827	Fluoridation	Other

1 - 18 of 18

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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