Safe Drinking Water Information System (SDWIS) Federal Reporting Services

Your Drinking Water Query results from SDWIS Fed Reporting Services

PWS ID	VA3001500
PWS Name	NASA WALLOPS FLIGHT FACILITY
PWS Type	Community water system
Owner Type	Federal government
Primary Source	Ground water
Primacy Type	State
Is Wholesaler?	No
Population Served	1625
County Served	Accomack

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
TT	Treatment Technique (SWTR and GWR)	Ground Water Rule	Groundwater Rule	3784924	Returned to Compliance	01-NOV-2023	30-NOV-2023	Yes
TT	Treatment Technique (SWTR and GWR)	Ground Water Rule	Groundwater Rule	3784923	Returned to Compliance	01-SEP-2023	30-SEP-2023	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	3784922	Returned to Compliance	01-JUL-2023	30-SEP-2023	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	3784920	Returned to Compliance	01-APR-2023	30-JUN-2023	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	3784917	Returned to Compliance	01-JAN-2023	31-MAR-2023	Yes
TT	Treatment Technique (SWTR and GWR)	Ground Water Rule	Groundwater Rule	3784916	Returned to Compliance	01-DEC-2022	31-DEC-2022	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	3784914	Returned to Compliance	01-OCT-2022	31-DEC-2022	Yes
TT	Treatment Technique (SWTR and GWR)	Ground Water Rule	Groundwater Rule	3784913	Returned to Compliance	01-JAN-2021	31-JAN-2021	Yes
TT	Treatment Technique (SWTR and GWR)	Ground Water Rule	Groundwater Rule	3784912	Returned to Compliance	01-AUG-2017	31-AUG-2017	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 1 Disinfectants and Disinfection Byproducts Rule	TTHM	3784911	Returned to Compliance	01-APR-2012	30-JUN-2012	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 1 Disinfectants and Disinfection Byproducts Rule	TTHM	3784910	Returned to Compliance	01-JAN-2012	31-MAR-2012	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 1 Disinfectants and Disinfection Byproducts Rule	TTHM	3784909	Returned to Compliance	01-OCT-2011	31-DEC-2011	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 1 Disinfectants and Disinfection Byproducts Rule	TTHM	3784908	Returned to Compliance	01-JUL-2011	30-SEP-2011	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 1 Disinfectants and Disinfection Byproducts Rule	TTHM	3784907	Returned to Compliance	01-APR-2011	30-JUN-2011	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 1 Disinfectants and Disinfection Byproducts Rule	TTHM	3784905	Returned to Compliance	01-JAN-2011	31-MAR-2011	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 1 Disinfectants and Disinfection Byproducts Rule	TTHM	3784904	Returned to Compliance	01-OCT-2010	31-DEC-2010	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 1 Disinfectants and Disinfection Byproducts Rule	TTHM	3784903	Returned to Compliance	01-JUL-2010	30-SEP-2010	Yes
MR	Monitoring, Regular	Nitrate Rule	Nitrate-Nitrite	3784906	Returned to Compliance	01-JAN-2010	31-DEC-2010	No
MR	Monitoring, Repeat Minor (TCR)	Total Coliform Rule	Coliform (TCR)	3784902	Returned to Compliance	01-DEC-2001	31-DEC-2001	No
MCL	Maximum Contaminant Level Violation, Acute (TCR)	Total Coliform Rule	Coliform (TCR)	3784794	Known	01-SEP-1994	30-SEP-1994	Yes
MCL	Maximum Contaminant Level Violation, Acute (TCR)	Total Coliform Rule	Coliform (TCR)	3769392	Known	01-JUL-1992	31-JUL-1992	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
1101785	3784924	SIF	State Public Notification received	07-DEC-2023	State	-
1101755	3784917	SOX	State Compliance achieved	15-NOV-2023	State	-
1101773	3784922	SOX	State Compliance achieved	15-NOV-2023	State	-
1101768	3784920	SOX	State Compliance achieved	15-NOV-2023	State	-
1101749	3784914	SOX	State Compliance achieved	15-NOV-2023	State	-
1101780	3784923	SIE	State Public Notification requested	24-OCT-2023	State	-
1101751	3784916	SIE	State Public Notification requested	12-JAN-2023	State	-
1101743	3784913	SIF	State Public Notification received	23-FEB-2021	State	-
1101739	3784912	SIF	State Public Notification received	13-OCT-2017	State	-
#1201201	3784909	EOX	Federal Compliance achieved	11-JUL-2013	ODSWeb	Please add any additional violation of Stage 1 DBP MCL violations for TTHMS
#1201201	3784908	EOX	Federal Compliance achieved	11-JUL-2013	ODSWeb	Please add any additional violation of Stage 1 DBP MCL violations for TTHMS
#1201201	3784907	EOX	Federal Compliance achieved	11-JUL-2013	ODSWeb	Please add any additional violation of Stage 1 DBP MCL violations for TTHMS
#1201201	3784905	EOX	Federal Compliance achieved	11-JUL-2013	ODSWeb	Please add any additional violation of Stage 1 DBP MCL violations for TTHMS
#1201201	3784903	EOX	Federal Compliance achieved	11-JUL-2013	ODSWeb	Please add any additional violation of Stage 1 DBP MCL violations for TTHMS
#1201201	3784904	EOX	Federal Compliance achieved	11-JUL-2013	ODSWeb	Please add any additional violation of Stage 1 DBP MCL violations for TTHMS
1101728	3784910	SOX	State Compliance achieved	30-NOV-2012	State	-
1101732	3784911	SOX	State Compliance achieved	30-NOV-2012	State	-
1101718	3784906	SIF	State Public Notification received	06-JUL-2011	State	-
307203	3784902	SOX	State Compliance achieved	06-NOV-2002	State	-
1101694	3784794	SIF	State Public Notification received	22-NOV-1994	State	-
193	3769392	SIF	State Public Notification received	29-SEP-1992	State	-

1 - 21 of 21

All Facilities

Facility Name	Facility ID	Is Source	Facility Type Description	Water Type Description	Availability Description	Facility Activity Status
WELL #1	1507	Yes	Well	Ground water	Permanent	Active
WELL #5	6177	Yes	Well	Ground water	Permanent	Inactive
WELL #2	5483	Yes	Well	Ground water	Permanent	Inactive
WELL #4	6085	Yes	Well	Ground water	Permanent	Active
WELL #3	5907	Yes	Well	Ground water	Permanent	Active
WELL 6	40919	Yes	Well	Ground water	Permanent	Active
DISTRIBUTION SYSTEM	15133	No	Distribution System/Zone	-	-	Active
ENTRY POINT	20366	No	Sampling Station	-	-	Active
GROUND TANK 500K	15130	No	Storage	-	-	Active
ELEVATED TANK	15131	No	Storage	-	-	Active
CHLORINATOR	15132	No	Treatment Plant	-	-	Active
CORROSION CONTROL	39933	No	Treatment Plant	-	-	Active
TANK AERATION	39934	No	Treatment Plant	-	-	Active

1 - 13 of 13

Treatment Processes

Facility Name	Facility ID	Treatment Process	Treatment Objective
CHLORINATOR	15132	4-Log Treatment of Viruses	Disinfection
CHLORINATOR	15132	Hypochlorination, Post	Disinfection
CORROSION CONTROL	39933	Inhibitor, Orthophosphate	Corrosion control
TANK AERATION	39934	Aeration, Spray	Disinfection by-products control

1 - 4 of 4

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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