Safe Drinking Water Information System (SDWIS) Federal Reporting Services

Your Drinking Water Query results from SDWIS Fed Reporting Services

PWS ID	SD4600224
PWS Name	NEW UNDERWOOD
PWS Type	Community water system
Owner Type	Local government
Primary Source	Ground water
Primacy Type	State
Is Wholesaler?	No
Population Served	679
County Served	Pennington

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 1 Disinfectants and Disinfection Byproducts Rule	Chlorine	2300136	Returned to Compliance	01-OCT-2022	31-DEC-2022	No
MON	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	Revised Total Coliform Rule	2300135	Returned to Compliance	01-OCT-2022	31-OCT-2022	No
Other	Sanitary Survey (TCR)	Ground Water Rule	-	1300134	Returned to Compliance	26-MAY-2013	-	No
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Combined Radium (-226 and -228)	1000133	Returned to Compliance	01-APR-2010	30-JUN-2010	Yes
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Gross Alpha, Excl. Radon and U	1000132	Returned to Compliance	01-APR-2010	30-JUN-2010	Yes
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Combined Radium (-226 and -228)	1000131	Returned to Compliance	01-JAN-2010	31-MAR-2010	Yes
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Gross Alpha, Excl. Radon and U	1000130	Returned to Compliance	01-JAN-2010	31-MAR-2010	Yes
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Combined Radium (-226 and -228)	1000129	Returned to Compliance	01-OCT-2009	31-DEC-2009	Yes
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Gross Alpha, Excl. Radon and U	1000128	Returned to Compliance	01-OCT-2009	31-DEC-2009	Yes
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Gross Alpha, Excl. Radon and U	0900126	Returned to Compliance	01-JUL-2009	30-SEP-2009	Yes
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Combined Radium (-226 and -228)	0900127	Returned to Compliance	01-JUL-2009	30-SEP-2009	Yes
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Gross Alpha, Excl. Radon and U	0900124	Returned to Compliance	01-APR-2009	30-JUN-2009	Yes
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Combined Radium (-226 and -228)	0900125	Returned to Compliance	01-APR-2009	30-JUN-2009	Yes
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Gross Alpha, Excl. Radon and U	0900121	Returned to Compliance	01-JAN-2009	31-MAR-2009	Yes
MR	Monitoring, Regular	Volatile Organic Chemicals	Toluene	0900123	Returned to Compliance	01-JAN-2009	31-MAR-2009	No
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Gross Alpha, Excl. Radon and U	0900120	Returned to Compliance	01-OCT-2008	31-DEC-2008	Yes
MR	Monitoring, Regular	Volatile Organic Chemicals	Toluene	0900122	Returned to Compliance	01-OCT-2008	31-DEC-2008	No
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Gross Alpha, Excl. Radon and U	0600119	Returned to Compliance	01-APR-2006	30-JUN-2006	Yes
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Combined Radium (-226 and -228)	0600118	Returned to Compliance	01-JAN-2006	31-MAR-2006	Yes
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Gross Alpha, Excl. Radon and U	0600117	Returned to Compliance	01-JAN-2006	31-MAR-2006	Yes
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Gross Alpha, Excl. Radon and U	0500116	Returned to Compliance	01-APR-2005	30-JUN-2005	Yes
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Gross Alpha, Excl. Radon and U	0500113	Returned to Compliance	01-JAN-2005	31-MAR-2005	Yes
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Gross Alpha, Excl. Radon and U	0500112	Returned to Compliance	01-OCT-2004	31-DEC-2004	Yes
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Combined Radium (-226 and -228)	0400114	Returned to Compliance	01-JUL-2004	30-SEP-2004	Yes
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Combined Radium (-226 and -228)	0400115	Returned to Compliance	01-APR-2004	30-JUN-2004	Yes
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Combined Radium (-226 and -228)	0400111	Returned to Compliance	01-JAN-2004	31-DEC-2004	Yes
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Combined Radium (-226 and -228)	0400110	Returned to Compliance	01-OCT-2003	31-DEC-2003	Yes
MR	Monitoring, Regular	Radionuclides and Revised Rad Rule	Combined Uranium	0300109	Returned to Compliance	01-APR-2003	30-JUN-2003	No
MR	Monitoring, Regular	Radionuclides and Revised Rad Rule	Combined Radium (-226 and -228)	0300108	Returned to Compliance	01-APR-2003	30-JUN-2003	No
MR	Monitoring, Regular	Radionuclides and Revised Rad Rule	Gross Alpha, Excl. Radon and U	0300107	Returned to Compliance	01-APR-2003	30-JUN-2003	No
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	9800106	Returned to Compliance	01-NOV-1997	30-NOV-1997	Yes
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	9700105	Returned to Compliance	01-JUL-1997	31-JUL-1997	Yes
MR	Monitoring, Regular	Inorganic Chemicals	Thallium, Total	9500104	Returned to Compliance	01-APR-1995	30-JUN-1995	No
MR	Monitoring, Regular	Inorganic Chemicals	Antimony, Total	9500103	Returned to Compliance	01-APR-1995	30-JUN-1995	No
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	9500102	Returned to Compliance	01-NOV-1994	30-NOV-1994	Yes
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	9400101	Returned to Compliance	01-OCT-1993	31-OCT-1993	Yes
Other	Notification, Public	Miscellaneous Other Rules	-	9000100	Known	26-JUL-1990	25-AUG-1990	No
MR	Monitoring, Regular	Radionuclides and Revised Rad Rule	Gross Alpha, Excl. Radon and U	8015687	Known	01-JUL-1976	30-JUN-1980	No
MR	Monitoring, Regular	Radionuclides and Revised Rad Rule	Combined Radium (-226 and -228)	8015688	Known	01-JUL-1976	30-JUN-1980	No

1 - 39 of 39

Enforcement Actions

Latest Enforcement ID	Associated To Violation ID	Enforcement Action Type Code	Enforcement Action Description	Enforcement Date	Originator Description	Enforcement Comment
2300133	2300136	SIF	State Public Notification received	25-MAY-2023	State	-
2300131	2300135	SOX	State Compliance achieved	17-MAY-2023	State	-
1300128	1300134	SOX	State Compliance achieved	24-AUG-2015	State	-
0500108	0500113	SOX	State Compliance achieved	29-MAR-2011	State	-
1000126	1000133	SOX	State Compliance achieved	29-MAR-2011	State	-
1000125	1000132	SOX	State Compliance achieved	29-MAR-2011	State	-
1000124	1000131	SOX	State Compliance achieved	29-MAR-2011	State	-
1000123	1000130	SOX	State Compliance achieved	29-MAR-2011	State	-
1000122	1000129	SOX	State Compliance achieved	29-MAR-2011	State	-
1000121	1000128	SOX	State Compliance achieved	29-MAR-2011	State	-
0900120	0900127	SOX	State Compliance achieved	29-MAR-2011	State	-
0900119	0900126	SOX	State Compliance achieved	29-MAR-2011	State	-
0900118	0900125	SOX	State Compliance achieved	29-MAR-2011	State	-
0900117	0900124	SOX	State Compliance achieved	29-MAR-2011	State	-
0400105	0400110	SOX	State Compliance achieved	29-MAR-2011	State	-
0400106	0400111	SOX	State Compliance achieved	29-MAR-2011	State	-
0400109	0400114	SOX	State Compliance achieved	29-MAR-2011	State	-
0400110	0400115	SOX	State Compliance achieved	29-MAR-2011	State	-
0500107	0500112	SOX	State Compliance achieved	29-MAR-2011	State	-
0500111	0500116	SOX	State Compliance achieved	29-MAR-2011	State	-
0600112	0600117	SOX	State Compliance achieved	29-MAR-2011	State	-
0600113	0600118	SOX	State Compliance achieved	29-MAR-2011	State	-
0600114	0600119	SOX	State Compliance achieved	29-MAR-2011	State	-
0900115	0900120	SOX	State Compliance achieved	29-MAR-2011	State	-
0900116	0900121	SOX	State Compliance achieved	29-MAR-2011	State	-
0900090	0900123	SIF	State Public Notification received	05-MAY-2010	State	-
0900059	0900122	SO6	State Intentional no-action	03-JUN-2009	State	NEW UNDERWOOD
0300021	0300108	SIF	State Public Notification received	07-OCT-2003	State	-
0300020	0300107	SIF	State Public Notification received	07-OCT-2003	State	-
0300022	0300109	SIF	State Public Notification received	07-OCT-2003	State	-
9800100	9800106	SOX	State Compliance achieved	01-JUN-1998	State	-
9700099	9700105	SOX	State Compliance achieved	01-JUN-1998	State	-
9500016	9500104	SOX	State Compliance achieved	12-MAY-1998	State	-
9500015	9500103	SOX	State Compliance achieved	16-OCT-1996	State	-
9500098	9500102	SOX	State Compliance achieved	01-JUN-1995	State	-
9400097	9400101	SOX	State Compliance achieved	01-MAY-1994	State	-

1 - 36 of 36

All Facilities

Facility Name	Facility ID	Is Source	Facility Type Description	Water Type Description	Availability Description	Facility Activity Status
#1	005	Yes	Well	Ground water	Emergency	Inactive
#2	006	Yes	Well	Ground water	Permanent	Active
1 SS 238000	007	No	Storage	-	-	Active
15000 G ELEVATED STEEL TANK	003	No	Storage	-	-	Inactive
1 GS 32000	004	No	Storage	-	-	Inactive
RAD TREAT SITE-#2	008	No	Treatment Plant	-	-	Active
TREAT SITE - #1	001	No	Treatment Plant	-	-	Inactive
TREAT SITE - #2	002	No	Treatment Plant	-	-	Inactive

1 - 8 of 8

Treatment Processes

Facility Name	Facility ID	Treatment Process	Treatment Objective
TREAT SITE - #1	001	Hypochlorination, Post	Disinfection
TREAT SITE - #1	001	Inhibitor, Polyphosphate	Corrosion control
TREAT SITE - #2	002	Hypochlorination, Post	Disinfection
TREAT SITE - #2	002	Inhibitor, Polyphosphate	Corrosion control
RAD TREAT SITE-#2	008	Hypochlorination, Post	Disinfection
RAD TREAT SITE-#2	008	Inhibitor, Polyphosphate	Corrosion control

1 - 6 of 6

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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