Safe Drinking Water Information System (SDWIS) Federal Reporting Services

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PWS ID	MD0180007
PWS Name	LEXINGTON PARK
PWS Type	Community water system
Owner Type	Local government
Primary Source	Ground water
Primacy Type	State
Is Wholesaler?	No
Population Served	43030
County Served	St. Mary's

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
RPT	Notification, Known or Potential LSL	Lead and Copper Rule Revisions	LEAD AND COPPER RULE REVISIONS	15	Returned to Compliance	02-JUL-2025	-	No
MR	Monitoring, Regular	Nitrate Rule	Nitrate	14	Returned to Compliance	01-JAN-2024	31-DEC-2024	No
MR	Monitoring, Regular	Nitrate Rule	Nitrate	13	Returned to Compliance	01-JAN-2024	31-DEC-2024	No
MR	Monitoring and Reporting (DBP)	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	12	Returned to Compliance	01-JUN-2023	31-AUG-2023	No
MR	Follow-up Or Routine LCR Tap M/R	Lead and Copper Rule	Lead and Copper Rule	9	Returned to Compliance	01-OCT-2020	-	No
MR	Monitoring, Regular	Inorganic Chemicals	Fluoride	5	Returned to Compliance	01-JAN-2009	31-DEC-2009	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	TTHM	2	Returned to Compliance	01-JAN-2005	31-MAR-2005	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	Total Haloacetic Acids (HAA5)	4	Returned to Compliance	01-JAN-2005	31-MAR-2005	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	Total Haloacetic Acids (HAA5)	3	Returned to Compliance	01-OCT-2004	31-DEC-2004	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	TTHM	1	Returned to Compliance	01-JAN-2004	31-DEC-2004	No
MR	Monitoring, Routine Minor (TCR)	Total Coliform Rule	Coliform (TCR)	94V0001	Returned to Compliance	01-JAN-1994	31-JAN-1994	No
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	92V0001	Known	01-NOV-1991	30-NOV-1991	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
25	15	SOX	State Compliance achieved	13-NOV-2025	State	Initial LSL Inventory first submitted to MDE on 10/10/2024 (due 10/16/2024); SL Material Notification sent to water customers late (due 11/15/2024); Certification of Notification of SL Material and copy of Notice(s) submitted to MDE on 11/13/2025 (due 07/01/2025).
23	13	SIF	State Public Notification received	07-JUL-2025	State	-
24	14	SIF	State Public Notification received	07-JUL-2025	State	-
15	12	SIE	State Public Notification requested	04-APR-2024	State	-
13	9	SOX	State Compliance achieved	02-NOV-2020	State	Late report. June - Sept 2020 lead/copper report emailed 11/2/20.
12	5	SOX	State Compliance achieved	29-APR-2010	State	ENFORCEMENTID :1047975;
9	3	SOX	State Compliance achieved	19-SEP-2005	State	ENFORCEMENTID :0534808;
8	1	SOX	State Compliance achieved	19-SEP-2005	State	ENFORCEMENTID :0534807;
7	4	SOX	State Compliance achieved	19-SEP-2005	State	ENFORCEMENTID :0534806;
1	2	SOX	State Compliance achieved	19-SEP-2005	State	ENFORCEMENTID :0534606;
94E0001	94V0001	SOX	State Compliance achieved	23-FEB-1994	State	-
92E0004	92V0001	SIE	State Public Notification requested	02-DEC-1991	State	-

1 - 12 of 12

All Facilities

Facility Name	Facility ID	Is Source	Facility Type Description	Water Type Description	Availability Description	Facility Activity Status
GREAT MILLS COMMERCIAL CTR. SM812350	1751	Yes	Well	Ground water	Other	Inactive
ABBAND -RR SM013247	1769	Yes	Well	Ground water	Permanent	Inactive
NOT OPP SM732769	1768	Yes	Well	Ground water	Permanent	Inactive
ABBAND -ML SM035942	1767	Yes	Well	Ground water	Permanent	Inactive
GREENVIEW 2 SM670256	1764	Yes	Well	Ground water	Permanent	Inactive
GREENVIEW 1 SM034292	1763	Yes	Well	Ground water	Permanent	Inactive
ST MARYS IND PK 1R SM880305	1760	Yes	Well	Ground water	Permanent	Inactive
ST. MARY INDUSTRIAL PARK SM732066	1758	Yes	Well	Ground water	Permanent	Inactive
ST. MARY INDUSTRIAL PARK SM812431	1757	Yes	Well	Ground water	Permanent	Inactive
ST. MARY INDUSTRIAL PARK SM732067	1756	Yes	Well	Ground water	Permanent	Inactive
ST. MARY INDUSTRIAL PARK SM732379	1755	Yes	Well	Ground water	Permanent	Inactive
ST. MARY INDUSTRIAL PARK SM732385	1754	Yes	Well	Ground water	Permanent	Inactive
WL18 SM045141	1753	Yes	Well	Ground water	Permanent	Inactive
SAN SOUCI SM811475	1748	Yes	Well	Ground water	Permanent	Inactive
WILDEWOOD 2 SM810060	1747	Yes	Well	Ground water	Permanent	Inactive
HICKORY HILLS SM810049	1746	Yes	Well	Ground water	Permanent	Inactive
ESPERANZA 1 SM010607	1745	Yes	Well	Ground water	Permanent	Inactive
GUNSTON 2 (NEW TOWN CREEK 5) NOPERMIT	1738	Yes	Well	Ground water	Permanent	Inactive
TOWN CREEK 6A SM055243	1736	Yes	Well	Ground water	Permanent	Inactive
TOWN CREEK 3 SM022161	1735	Yes	Well	Ground water	Permanent	Inactive
TUBMAN-DOUGLAS SM730768	1734	Yes	Well	Ground water	Permanent	Inactive
HICKORY HILLS WELL SM190040	30683	Yes	Well	Ground water	Permanent	Active
HOLLYWOOD WELL- SM140278	29302	Yes	Well	Ground water	Permanent	Active
ABBERLY FARMS SM945438	1766	Yes	Well	Ground water	Permanent	Active
GREENVIEW 3 SM812571	1765	Yes	Well	Ground water	Permanent	Active
FIRST COLONY 2 SM942702	1762	Yes	Well	Ground water	Permanent	Active
FIRST COLONY 1 SM941981	1761	Yes	Well	Ground water	Permanent	Active
ST. INDUSTRIAL PARK WELL SM951365	1759	Yes	Well	Ground water	Permanent	Active
LAUREL GLEN SM930272	1752	Yes	Well	Ground water	Permanent	Active
WILDEWOOD 4 SM951974	1750	Yes	Well	Ground water	Permanent	Active
WILDEWOOD 3R SM940001	1749	Yes	Well	Ground water	Permanent	Active
WILDEWOOD 1 SM731957	1744	Yes	Well	Ground water	Permanent	Active
PEGGS ROAD SM730635	1743	Yes	Well	Ground water	Permanent	Active
BANK SQUARE SM680185	1742	Yes	Well	Ground water	Permanent	Active
COLONY SQUARE SM006688	1741	Yes	Well	Ground water	Permanent	Active
WILLOWS ROAD SM014838	1740	Yes	Well	Ground water	Permanent	Active
ESPERANZA FARMS SM813132	1739	Yes	Well	Ground water	Permanent	Active
TOWN CREEK 6B SM881226	1737	Yes	Well	Ground water	Permanent	Active
ESSEX DRIVE SM057673	1733	Yes	Well	Ground water	Permanent	Active
WTP TOWN CREEK 4 (MIRFIELD LN)	15781	No	Common Headers	-	-	Inactive
WTP TOWN CREEK 2 (ROLLING RD)	15782	No	Common Headers	-	-	Inactive
DISTRIBUTION SYSTEM	8838	No	Distribution System/Zone	-	-	Active
OTHER SOURCES	99	No	Other	-	-	Inactive
STORAGE TANK	19127	No	Storage	-	-	Active
WTP ESSEX DRIVE	26303	No	Treatment Plant	-	-	Active
WTP TOWN CREEK 6	26306	No	Treatment Plant	-	-	Active
WTP 6 - ESPERANZA FARMS WELL	26308	No	Treatment Plant	-	-	Active
WTP WILLOWS ROAD	26309	No	Treatment Plant	-	-	Active
WTP COLONY SQUARE	26310	No	Treatment Plant	-	-	Active
WTP BANK SQUARE	26311	No	Treatment Plant	-	-	Active

1 - 50 of 70

Treatment Processes

Facility Name	Facility ID	Treatment Process	Treatment Objective
WTP ESSEX DRIVE	26303	Hypochlorination, Post	Disinfection
WTP TUBMAN DOUGLAS ESTATES	26304	Hypochlorination, Post	Disinfection
WTP TOWN CREEK 3	26305	Hypochlorination, Post	Disinfection
WTP TOWN CREEK 6	26306	Hypochlorination, Post	Disinfection
WTP TOWN CREEK 5 GUNSTON WL	26307	Hypochlorination, Post	Disinfection
WTP 6 - ESPERANZA FARMS WELL	26308	Gaseous Chlorination, Post	Disinfection
WTP WILLOWS ROAD	26309	Hypochlorination, Post	Disinfection
WTP COLONY SQUARE	26310	Hypochlorination, Post	Disinfection
WTP BANK SQUARE	26311	Hypochlorination, Post	Disinfection
WTP PEGGS ROAD	26312	Gaseous Chlorination, Post	Disinfection
WTP WILDEWOOD 1	26313	Hypochlorination, Post	Disinfection
WTP HICKORY HILLS	26315	Hypochlorination, Post	Disinfection
WTP WILDEWOOD 2	26316	Hypochlorination, Post	Disinfection
WTP 17 - SAN SOUCI WELL	26317	Hypochlorination, Post	Disinfection
WTP WILDEWOOD WELLS 3 AND 4	26318	Hypochlorination, Post	Disinfection
WTP GREAT MILLS INDUSTRIAL PK	26319	Hypochlorination, Post	Disinfection
WTP LAUREL GLEN	26320	Hypochlorination, Post	Disinfection
ST MARY INDUSTRIAL PARK WTP 1R	26321	Hypochlorination, Post	Disinfection
WTP FIRST COLONY	26322	Hypochlorination, Post	Disinfection
WTP GREENVIEW KNOLLS 2	26324	Hypochlorination, Post	Disinfection
WTP GREENVIEW KNOLLS 3	26325	Hypochlorination, Post	Disinfection
WTP ABBERLY CREST APTS	26326	Hypochlorination, Post	Disinfection
HOLLYWOOD TOWER WTP	29348	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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