Safe Drinking Water Information System (SDWIS) Federal Reporting Services

Your Drinking Water Query results from SDWIS Fed Reporting Services

PWS ID	AZ0414015
PWS Name	SOMERTON CITY OF
PWS Type	Community water system
Owner Type	Local government
Primary Source	Ground water
Primacy Type	State
Is Wholesaler?	No
Population Served	14197
County Served	Yuma

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
Other	Consumer Confidence Report Inadequate Reporting	Consumer Confidence Rule	Consumer Confidence Rule	12736	Returned to Compliance	02-OCT-2025	-	No
RPT	Report Sample Result/Fail Monitor (RTCR)	Revised Total Coliform Rule	Revised Total Coliform Rule	12732	Returned to Compliance	01-JUL-2024	-	No
RPT	Report Sample Result/Fail Monitor (RTCR)	Revised Total Coliform Rule	Revised Total Coliform Rule	12728	Returned to Compliance	01-MAR-2023	-	No
RPT	Report Sample Result/Fail Monitor (RTCR)	Revised Total Coliform Rule	Revised Total Coliform Rule	12727	Returned to Compliance	01-FEB-2023	-	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	Chlorine	12731	Returned to Compliance	01-JAN-2023	31-MAR-2023	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	Chlorine	12724	Returned to Compliance	01-APR-2022	30-JUN-2022	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	Chlorine	12716	Returned to Compliance	01-OCT-2020	31-DEC-2020	No
MR	Monitoring and Reporting (DBP)	Stage 2 Disinfectants and Disinfection Byproducts Rule	Total Haloacetic Acids (HAA5)	12720	Returned to Compliance	01-AUG-2020	31-OCT-2020	No
MR	Monitoring and Reporting (DBP)	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	12719	Returned to Compliance	01-AUG-2020	31-OCT-2020	No
RPT	Report Sample Result/Fail Monitor (RTCR)	Revised Total Coliform Rule	Revised Total Coliform Rule	12715	Returned to Compliance	01-JUL-2020	-	No
Other	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	Consumer Confidence Rule	12710	Returned to Compliance	01-JUL-2019	-	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	Chlorine	12707	Returned to Compliance	01-JUL-2018	30-SEP-2018	No
RPT	Report Sample Result/Fail Monitor (RTCR)	Revised Total Coliform Rule	Revised Total Coliform Rule	12704	Returned to Compliance	01-NOV-2017	-	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	Chlorine	12701	Returned to Compliance	01-JAN-2017	31-MAR-2017	No
RPT	Report Sample Result/Fail Monitor (RTCR)	Revised Total Coliform Rule	Revised Total Coliform Rule	12698	Returned to Compliance	01-DEC-2016	-	No
MON	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	Revised Total Coliform Rule	12693	Returned to Compliance	01-NOV-2016	30-NOV-2016	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	Chlorine	12696	Returned to Compliance	01-JUL-2016	30-SEP-2016	No
MON	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	Revised Total Coliform Rule	12692	Returned to Compliance	01-APR-2016	30-APR-2016	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	Total Haloacetic Acids (HAA5)	12633	Returned to Compliance	01-JAN-2012	31-MAR-2012	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	TTHM	12632	Returned to Compliance	01-JAN-2012	31-MAR-2012	No
MR	Monitoring, Source Water (GWR)	Ground Water Rule	E. COLI	12627	Returned to Compliance	01-NOV-2011	-	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	Total Haloacetic Acids (HAA5)	12630	Returned to Compliance	01-JUL-2011	30-SEP-2011	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	TTHM	12629	Returned to Compliance	01-JUL-2011	30-SEP-2011	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	TTHM	12625	Returned to Compliance	01-APR-2010	30-JUN-2010	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	TTHM	12623	Returned to Compliance	01-JAN-2010	31-MAR-2010	No
MCL	Maximum Contaminant Level Violation, Average	Stage 1 Disinfectants and Disinfection Byproducts Rule	TTHM	12624	Returned to Compliance	01-JAN-2010	31-MAR-2010	Yes
Other	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	Consumer Confidence Rule	12637	Returned to Compliance	01-JUL-2006	-	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	Chlorine	12607	Returned to Compliance	01-JUL-2006	30-SEP-2006	No
Other	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	Consumer Confidence Rule	11805	Returned to Compliance	01-JUL-2005	-	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	Chlorine	11305	Returned to Compliance	01-JAN-2005	31-MAR-2005	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	Chlorine	11005	Returned to Compliance	01-OCT-2004	31-DEC-2004	No
MR	Follow-up Or Routine LCR Tap M/R	Lead and Copper Rule	Lead and Copper Rule	12205	Returned to Compliance	01-OCT-2004	-	No
MR	Monitoring, Routine Minor (TCR)	Total Coliform Rule	Coliform (TCR)	9804	Returned to Compliance	01-AUG-2004	31-AUG-2004	No
Other	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	Consumer Confidence Rule	12636	Returned to Compliance	01-JUL-2004	-	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	Chlorine	10705	Returned to Compliance	01-JUL-2004	30-SEP-2004	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	Chlorine	10405	Returned to Compliance	01-APR-2004	30-JUN-2004	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Benzo(a)pyrene	12662	Returned to Compliance	01-JAN-2004	31-DEC-2012	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	HEXACHLOROBENZENE	12661	Returned to Compliance	01-JAN-2004	31-DEC-2012	No
MR	Monitoring, Regular	Nitrate Rule	Nitrate	10005	Returned to Compliance	01-JAN-2004	31-DEC-2004	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	2,4,5-TP	12660	Returned to Compliance	01-JAN-2004	31-DEC-2012	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	2,4-D	12659	Returned to Compliance	01-JAN-2004	31-DEC-2012	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	Chlorine	10104	Returned to Compliance	01-JAN-2004	31-MAR-2004	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Heptachlor epoxide	12658	Returned to Compliance	01-JAN-2004	31-DEC-2012	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Heptachlor	12657	Returned to Compliance	01-JAN-2004	31-DEC-2012	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	LASSO	12655	Returned to Compliance	01-JAN-2004	31-DEC-2012	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Atrazine	12654	Returned to Compliance	01-JAN-2004	31-DEC-2012	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Carbofuran	12653	Returned to Compliance	01-JAN-2004	31-DEC-2012	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Hexachlorocyclopentadiene	12652	Returned to Compliance	01-JAN-2004	31-DEC-2012	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Dinoseb	12651	Returned to Compliance	01-JAN-2004	31-DEC-2012	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Picloram	12650	Returned to Compliance	01-JAN-2004	31-DEC-2012	No

1 - 50 of 157

Enforcement Actions

Latest Enforcement ID	Associated To Violation ID	Enforcement Action Type Code	Enforcement Action Description	Enforcement Date	Originator Description	Enforcement Comment
5524	12736	SOX	State Compliance achieved	03-NOV-2025	State	-
5514	12732	SOX	State Compliance achieved	20-AUG-2024	State	-
5511	12728	SOX	State Compliance achieved	05-JUL-2023	State	Data reported on time for May 2023 RTCR. BM11 7/5/2023.
5511	12727	SOX	State Compliance achieved	05-JUL-2023	State	Data reported on time for May 2023 RTCR. BM11 7/5/2023.
5510	12731	SOX	State Compliance achieved	24-MAY-2023	State	Received late, 5/9/23. BM11 5/24/23.
5497	12724	SOX	State Compliance achieved	19-AUG-2022	State	-
5475	12719	SOX	State Compliance achieved	23-FEB-2021	State	4Q2020 dbp2 samples were taken on time but submitted late. CO3 2/23/2021
5476	12716	SOX	State Compliance achieved	23-FEB-2021	State	4Q2020 MRDL data submitted late on 2/23/21.
5475	12720	SOX	State Compliance achieved	23-FEB-2021	State	4Q2020 dbp2 samples were taken on time but submitted late. CO3 2/23/2021
5462	12715	SOX	State Compliance achieved	04-SEP-2020	State	PWS submitted July 2020 samples late. EB7 9/4/2020.
5457	12710	SOX	State Compliance achieved	28-AUG-2019	State	PWS submitted 2018 CCR late. EB7 8/28/19.
5452	12707	SOX	State Compliance achieved	04-DEC-2018	State	-
5445	12704	SOX	State Compliance achieved	14-DEC-2017	State	RTCR DATA RECIEVED LATE 12/14/2017 LT6
5444	12701	SOX	State Compliance achieved	31-MAY-2017	State	PWS reported 1Q17 MRDL 05/31/2017; klb 06/01/2017.
5442	12698	SIA	State Violation/Reminder Notice	25-JAN-2017	State	-
5439	12693	SOX	State Compliance achieved	05-JAN-2017	State	DATA RECIEVED 12/21/2016 LT6 1/05/2016
5435	12692	SIA	State Violation/Reminder Notice	21-OCT-2016	State	-
5440	12696	SOX	State Compliance achieved	12-OCT-2016	State	Data received 10/12/2017 LT6 1/10/2017
5434	12623	SOX	State Compliance achieved	17-MAR-2014	State	-
5433	12638	SOX	State Compliance achieved	27-AUG-2013	State	-
5433	12639	SOX	State Compliance achieved	27-AUG-2013	State	-
5433	12640	SOX	State Compliance achieved	27-AUG-2013	State	-
5433	12641	SOX	State Compliance achieved	27-AUG-2013	State	-
5433	12642	SOX	State Compliance achieved	27-AUG-2013	State	-
5433	12643	SOX	State Compliance achieved	27-AUG-2013	State	-
5433	12644	SOX	State Compliance achieved	27-AUG-2013	State	-
5433	12645	SOX	State Compliance achieved	27-AUG-2013	State	-
5433	12646	SOX	State Compliance achieved	27-AUG-2013	State	-
5433	12647	SOX	State Compliance achieved	27-AUG-2013	State	-
5433	12648	SOX	State Compliance achieved	27-AUG-2013	State	-
5433	12649	SOX	State Compliance achieved	27-AUG-2013	State	-
5433	12650	SOX	State Compliance achieved	27-AUG-2013	State	-
5433	12651	SOX	State Compliance achieved	27-AUG-2013	State	-
5433	12652	SOX	State Compliance achieved	27-AUG-2013	State	-
5433	12653	SOX	State Compliance achieved	27-AUG-2013	State	-
5433	12654	SOX	State Compliance achieved	27-AUG-2013	State	-
5433	12655	SOX	State Compliance achieved	27-AUG-2013	State	-
5433	12656	SOX	State Compliance achieved	27-AUG-2013	State	-
5433	12657	SOX	State Compliance achieved	27-AUG-2013	State	-
5433	12658	SOX	State Compliance achieved	27-AUG-2013	State	-
5433	12659	SOX	State Compliance achieved	27-AUG-2013	State	-
5433	12660	SOX	State Compliance achieved	27-AUG-2013	State	-
5433	12661	SOX	State Compliance achieved	27-AUG-2013	State	-
5433	12662	SOX	State Compliance achieved	27-AUG-2013	State	-
5433	12663	SOX	State Compliance achieved	27-AUG-2013	State	-
5433	12671	SOX	State Compliance achieved	27-AUG-2013	State	-
5433	12672	SOX	State Compliance achieved	27-AUG-2013	State	-
5433	12673	SOX	State Compliance achieved	27-AUG-2013	State	-
5427	12624	SOX	State Compliance achieved	05-NOV-2012	State	-
5427	12625	SOX	State Compliance achieved	05-NOV-2012	State	-

1 - 50 of 155

All Facilities

Facility Name	Facility ID	Is Source	Facility Type Description	Water Type Description	Availability Description	Facility Activity Status
WL-55-555731 - 3	18917	Yes	Well	Ground water	Permanent	Active
XWL-55-509179 - 1	8005	Yes	Well	Ground water	Permanent	Inactive
XWL-55-510272 - 2	6275	Yes	Well	Ground water	Permanent	Inactive
XWL-55-809349 - 6	23961	Yes	Well	Ground water	Permanent	Inactive
XWL-55-084965 - 5	23960	Yes	Well	Ground water	Permanent	Inactive
WL-55-207524 - 4	18918	Yes	Well	Ground water	Permanent	Active
DISTRIBUTION SYSTEM	15294	No	Distribution System/Zone	-	-	Active
XEPDS002	23962	No	Distribution System/Zone	-	-	Inactive
EPDS001	372	No	Sampling Station	-	-	Active
XEPHIS	17919	No	Sampling Station	-	-	Inactive
STORAGE TANK 001 - 1,000,000	23330	No	Storage	-	-	Active
STORAGE TANK 002 - 1,200,000	23331	No	Storage	-	-	Active
STORAGE TANK 003 - 180,000	24897	No	Storage	-	-	Active
TP001 - CL2	1187	No	Treatment Plant	-	-	Active
TP003 - CL2	24898	No	Treatment Plant	-	-	Active
XTP002 - CL2	23963	No	Treatment Plant	-	-	Inactive

1 - 16 of 16

Treatment Processes

Facility Name	Facility ID	Treatment Process	Treatment Objective
TP001 - CL2	1187	Hypochlorination, Post	Disinfection
TP003 - CL2	24898	Hypochlorination, Post	Disinfection

1 - 2 of 2

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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