Safe Drinking Water Information System (SDWIS) Federal Reporting Services

Your Drinking Water Query results from SDWIS Fed Reporting Services

PWS ID	AZ0410128
PWS Name	CS LOS CERROS WATER COMPANY INC
PWS Type	Community water system
Owner Type	Private
Primary Source	Ground water
Primacy Type	State
Is Wholesaler?	No
Population Served	2613
County Served	Pima

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 2 Disinfectants and Disinfection Byproducts Rule	Total Haloacetic Acids (HAA5)	8314	Returned to Compliance	01-JAN-2023	31-DEC-2023	No
MR	Monitoring and Reporting (DBP)	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	8313	Returned to Compliance	01-JAN-2023	31-DEC-2023	No
RPT	Report Sample Result/Fail Monitor (RTCR)	Revised Total Coliform Rule	Revised Total Coliform Rule	8312	Returned to Compliance	01-OCT-2019	-	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	Chlorine	8308	Returned to Compliance	01-JUL-2019	30-SEP-2019	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	Chlorine	8307	Returned to Compliance	01-OCT-2018	31-DEC-2018	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	Chlorine	8284	Returned to Compliance	01-JUL-2017	30-SEP-2017	No
MON	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	Revised Total Coliform Rule	8281	Returned to Compliance	01-JUL-2017	31-JUL-2017	No
MR	Monitoring and Reporting (DBP)	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	8285	Returned to Compliance	01-SEP-2016	31-AUG-2017	No
MR	Monitoring and Reporting (DBP)	Stage 2 Disinfectants and Disinfection Byproducts Rule	Total Haloacetic Acids (HAA5)	8286	Returned to Compliance	01-SEP-2016	31-AUG-2017	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	Chlorine	8280	Returned to Compliance	01-JUL-2016	30-SEP-2016	No
MR	Monitoring, Routine Major (TCR)	Total Coliform Rule	Coliform (TCR)	8276	Returned to Compliance	01-SEP-2015	30-SEP-2015	No
Other	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	Consumer Confidence Rule	8229	Returned to Compliance	01-JUL-2012	-	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	Total Haloacetic Acids (HAA5)	8228	Returned to Compliance	01-JAN-2011	31-DEC-2011	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	TTHM	8227	Returned to Compliance	01-JAN-2011	31-DEC-2011	No
MR	Monitoring, Routine Minor (TCR)	Total Coliform Rule	Coliform (TCR)	8223	Returned to Compliance	01-OCT-2010	31-OCT-2010	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	Chlorine	8272	Returned to Compliance	01-OCT-2010	31-DEC-2010	No
MR	Monitoring, Routine Minor (TCR)	Total Coliform Rule	Coliform (TCR)	8222	Returned to Compliance	01-SEP-2010	30-SEP-2010	No
MR	Monitoring, Routine Minor (TCR)	Total Coliform Rule	Coliform (TCR)	8221	Returned to Compliance	01-AUG-2010	31-AUG-2010	No
Other	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	Consumer Confidence Rule	8233	Returned to Compliance	01-JUL-2010	-	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	Chlorine	8274	Returned to Compliance	01-JUL-2010	30-SEP-2010	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	Total Haloacetic Acids (HAA5)	8225	Returned to Compliance	01-JAN-2010	31-DEC-2010	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	TTHM	8224	Returned to Compliance	01-JAN-2010	31-DEC-2010	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	Chlorine	8271	Returned to Compliance	01-JAN-2010	31-MAR-2010	No
MR	Monitoring, Regular	Radionuclides and Revised Rad Rule	Gross Alpha, Excl. Radon and U	8302	Returned to Compliance	01-JAN-2009	31-DEC-2017	No
MR	Monitoring, Regular	Radionuclides and Revised Rad Rule	Gross Alpha, Excl. Radon and U	8292	Returned to Compliance	01-JAN-2009	31-DEC-2017	No
MR	Monitoring, Regular	Radionuclides and Revised Rad Rule	Radium-228	8306	Returned to Compliance	01-JAN-2009	31-DEC-2017	No
MR	Monitoring, Regular	Radionuclides and Revised Rad Rule	Radium-228	8296	Returned to Compliance	01-JAN-2009	31-DEC-2017	No
MR	Monitoring, Regular	Radionuclides and Revised Rad Rule	Radium-228	8291	Returned to Compliance	01-JAN-2009	31-DEC-2017	No
MR	Monitoring, Regular	Radionuclides and Revised Rad Rule	Radium-226	8290	Returned to Compliance	01-JAN-2009	31-DEC-2017	No
MR	Monitoring, Regular	Radionuclides and Revised Rad Rule	Radium-226	8295	Returned to Compliance	01-JAN-2009	31-DEC-2017	No
MR	Monitoring, Regular	Radionuclides and Revised Rad Rule	Radium-226	8305	Returned to Compliance	01-JAN-2009	31-DEC-2017	No
MR	Monitoring, Regular	Radionuclides and Revised Rad Rule	Radium-226	8300	Returned to Compliance	01-JAN-2009	31-DEC-2017	No
MR	Monitoring, Regular	Radionuclides and Revised Rad Rule	Combined Radium (-226 and -228)	8304	Returned to Compliance	01-JAN-2009	31-DEC-2017	No
MR	Monitoring, Regular	Radionuclides and Revised Rad Rule	Combined Radium (-226 and -228)	8294	Returned to Compliance	01-JAN-2009	31-DEC-2017	No
MR	Monitoring, Regular	Radionuclides and Revised Rad Rule	Combined Radium (-226 and -228)	8289	Returned to Compliance	01-JAN-2009	31-DEC-2017	No
MR	Monitoring, Regular	Radionuclides and Revised Rad Rule	Combined Radium (-226 and -228)	8299	Returned to Compliance	01-JAN-2009	31-DEC-2017	No
MR	Monitoring, Regular	Radionuclides and Revised Rad Rule	Combined Uranium	8298	Returned to Compliance	01-JAN-2009	31-DEC-2017	No
MR	Monitoring, Regular	Radionuclides and Revised Rad Rule	Combined Uranium	8293	Returned to Compliance	01-JAN-2009	31-DEC-2017	No
MR	Monitoring, Regular	Radionuclides and Revised Rad Rule	Combined Uranium	8303	Returned to Compliance	01-JAN-2009	31-DEC-2017	No
MR	Monitoring, Regular	Radionuclides and Revised Rad Rule	Combined Uranium	8288	Returned to Compliance	01-JAN-2009	31-DEC-2017	No
MR	Monitoring, Regular	Radionuclides and Revised Rad Rule	Gross Alpha, Excl. Radon and U	8287	Returned to Compliance	01-JAN-2009	31-DEC-2017	No
MR	Monitoring, Regular	Radionuclides and Revised Rad Rule	Gross Alpha, Excl. Radon and U	8297	Returned to Compliance	01-JAN-2009	31-DEC-2017	No
MR	Monitoring, Regular	Radionuclides and Revised Rad Rule	Radium-228	8301	Returned to Compliance	01-JAN-2009	31-DEC-2017	No
MR	Monitoring, Routine Minor (TCR)	Total Coliform Rule	Coliform (TCR)	8211	Returned to Compliance	01-SEP-2007	30-SEP-2007	No
Other	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	Consumer Confidence Rule	8232	Returned to Compliance	01-JUL-2007	-	No
Other	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	Consumer Confidence Rule	8231	Returned to Compliance	01-JUL-2006	-	No
MR	Monitoring, Routine Major (TCR)	Total Coliform Rule	Coliform (TCR)	8206	Returned to Compliance	01-MAR-2006	31-MAR-2006	No
MR	Monitoring, Routine Major (TCR)	Total Coliform Rule	Coliform (TCR)	8106	Returned to Compliance	01-JAN-2006	31-JAN-2006	No
MR	Follow-up Or Routine LCR Tap M/R	Lead and Copper Rule	Lead and Copper Rule	7605	Returned to Compliance	01-OCT-2005	-	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	Chlorine	5605	Returned to Compliance	01-APR-2005	30-JUN-2005	No

1 - 50 of 132

Enforcement Actions

Latest Enforcement ID	Associated To Violation ID	Enforcement Action Type Code	Enforcement Action Description	Enforcement Date	Originator Description	Enforcement Comment
3954	8313	SOX	State Compliance achieved	29-AUG-2024	State	2024 monitoring occurred on 8/5/2024. Samples ND and uploaded on time. SOX violation RC17
3954	8314	SOX	State Compliance achieved	29-AUG-2024	State	2024 monitoring occurred on 8/5/2024. Samples ND and uploaded on time. SOX violation RC17
3947	8312	SIA	State Violation/Reminder Notice	29-NOV-2019	State	-
3944	8308	SIA	State Violation/Reminder Notice	18-NOV-2019	State	-
3939	8307	SOX	State Compliance achieved	25-FEB-2019	State	-
3934	8286	SOX	State Compliance achieved	04-SEP-2018	State	-
3934	8285	SOX	State Compliance achieved	04-SEP-2018	State	-
3933	8289	SOX	State Compliance achieved	13-APR-2018	State	MAP took RADs samples for EPDS001-004 on 03/28/2018, with results submitted on 04/13/2018. CO3 05/01/2018
3933	8306	SOX	State Compliance achieved	13-APR-2018	State	MAP took RADs samples for EPDS001-004 on 03/28/2018, with results submitted on 04/13/2018. CO3 05/01/2018
3933	8305	SOX	State Compliance achieved	13-APR-2018	State	MAP took RADs samples for EPDS001-004 on 03/28/2018, with results submitted on 04/13/2018. CO3 05/01/2018
3933	8304	SOX	State Compliance achieved	13-APR-2018	State	MAP took RADs samples for EPDS001-004 on 03/28/2018, with results submitted on 04/13/2018. CO3 05/01/2018
3933	8303	SOX	State Compliance achieved	13-APR-2018	State	MAP took RADs samples for EPDS001-004 on 03/28/2018, with results submitted on 04/13/2018. CO3 05/01/2018
3933	8302	SOX	State Compliance achieved	13-APR-2018	State	MAP took RADs samples for EPDS001-004 on 03/28/2018, with results submitted on 04/13/2018. CO3 05/01/2018
3933	8301	SOX	State Compliance achieved	13-APR-2018	State	MAP took RADs samples for EPDS001-004 on 03/28/2018, with results submitted on 04/13/2018. CO3 05/01/2018
3933	8300	SOX	State Compliance achieved	13-APR-2018	State	MAP took RADs samples for EPDS001-004 on 03/28/2018, with results submitted on 04/13/2018. CO3 05/01/2018
3933	8299	SOX	State Compliance achieved	13-APR-2018	State	MAP took RADs samples for EPDS001-004 on 03/28/2018, with results submitted on 04/13/2018. CO3 05/01/2018
3933	8298	SOX	State Compliance achieved	13-APR-2018	State	MAP took RADs samples for EPDS001-004 on 03/28/2018, with results submitted on 04/13/2018. CO3 05/01/2018
3933	8297	SOX	State Compliance achieved	13-APR-2018	State	MAP took RADs samples for EPDS001-004 on 03/28/2018, with results submitted on 04/13/2018. CO3 05/01/2018
3933	8296	SOX	State Compliance achieved	13-APR-2018	State	MAP took RADs samples for EPDS001-004 on 03/28/2018, with results submitted on 04/13/2018. CO3 05/01/2018
3933	8295	SOX	State Compliance achieved	13-APR-2018	State	MAP took RADs samples for EPDS001-004 on 03/28/2018, with results submitted on 04/13/2018. CO3 05/01/2018
3933	8294	SOX	State Compliance achieved	13-APR-2018	State	MAP took RADs samples for EPDS001-004 on 03/28/2018, with results submitted on 04/13/2018. CO3 05/01/2018
3933	8293	SOX	State Compliance achieved	13-APR-2018	State	MAP took RADs samples for EPDS001-004 on 03/28/2018, with results submitted on 04/13/2018. CO3 05/01/2018
3933	8292	SOX	State Compliance achieved	13-APR-2018	State	MAP took RADs samples for EPDS001-004 on 03/28/2018, with results submitted on 04/13/2018. CO3 05/01/2018
3933	8291	SOX	State Compliance achieved	13-APR-2018	State	MAP took RADs samples for EPDS001-004 on 03/28/2018, with results submitted on 04/13/2018. CO3 05/01/2018
3933	8287	SOX	State Compliance achieved	13-APR-2018	State	MAP took RADs samples for EPDS001-004 on 03/28/2018, with results submitted on 04/13/2018. CO3 05/01/2018
3933	8288	SOX	State Compliance achieved	13-APR-2018	State	MAP took RADs samples for EPDS001-004 on 03/28/2018, with results submitted on 04/13/2018. CO3 05/01/2018
3933	8290	SOX	State Compliance achieved	13-APR-2018	State	MAP took RADs samples for EPDS001-004 on 03/28/2018, with results submitted on 04/13/2018. CO3 05/01/2018
3921	8284	SOX	State Compliance achieved	01-NOV-2017	State	PWS reported MRDL 3Q17 11/01/2017; klb 11/02/2017.
3912	8281	SIA	State Violation/Reminder Notice	22-AUG-2017	State	-
3911	8280	SOX	State Compliance achieved	15-DEC-2016	State	Data Received 12/15/2016 LT6 1/09/2017
3909	8276	SIA	State Violation/Reminder Notice	04-DEC-2015	State	-
3903	8229	SOX	State Compliance achieved	25-JUL-2012	State	-
3902	8228	SOX	State Compliance achieved	30-MAY-2012	State	-
3902	8224	SOX	State Compliance achieved	30-MAY-2012	State	-
3902	8225	SOX	State Compliance achieved	30-MAY-2012	State	-
3902	8227	SOX	State Compliance achieved	30-MAY-2012	State	-
3901	8223	SOX	State Compliance achieved	31-JAN-2012	State	-
3906	8274	SOX	State Compliance achieved	22-MAR-2011	State	-
3906	8272	SOX	State Compliance achieved	22-MAR-2011	State	-
3899	8222	SOX	State Compliance achieved	17-NOV-2010	State	-
3899	8221	SOX	State Compliance achieved	17-NOV-2010	State	-
3905	8233	SOX	State Compliance achieved	08-JUL-2010	State	-
3893	8271	SOX	State Compliance achieved	10-JUN-2010	State	-
3889	8211	SOX	State Compliance achieved	16-MAR-2009	State	-
3887	7605	SIA	State Violation/Reminder Notice	19-MAY-2008	State	-
3886	8216	SOX	State Compliance achieved	12-MAR-2008	State	-
3886	8215	SOX	State Compliance achieved	12-MAR-2008	State	-
3886	8217	SOX	State Compliance achieved	12-MAR-2008	State	-
3885	8209	SOX	State Compliance achieved	04-DEC-2007	State	-
3885	8208	SOX	State Compliance achieved	04-DEC-2007	State	-

1 - 50 of 103

All Facilities

Facility Name	Facility ID	Is Source	Facility Type Description	Water Type Description	Availability Description	Facility Activity Status
WL-55-221487 - GOLDER RANCH 5	23314	Yes	Well	Ground water	Permanent	Active
WL-55-591958 - SILVER BUCKLE 4	8337	Yes	Well	Ground water	Permanent	Active
WL-55-804734 - LAGO DEL ORO 3	6025	Yes	Well	Ground water	Permanent	Active
WL-55-802342 - WILDS ROAD 1	6024	Yes	Well	Ground water	Permanent	Active
WL-55-805783 - FIESTA RD - 2	2722	Yes	Well	Ground water	Permanent	Active
DISTRIBUTION SYSTEM	12472	No	Distribution System/Zone	-	-	Active
EPDS001	10016	No	Sampling Station	-	-	Active
EPDS002	10017	No	Sampling Station	-	-	Active
EPDS003	10018	No	Sampling Station	-	-	Active
EPDS004	10019	No	Sampling Station	-	-	Active
EPDS005	23315	No	Sampling Station	-	-	Active
XEPHIS	17691	No	Sampling Station	-	-	Inactive
STORAGE TANK 001 - 20,000	22844	No	Storage	-	-	Active
STORAGE TANK 002 - 375,000	22845	No	Storage	-	-	Active
TP001 - CL2	1431	No	Treatment Plant	-	-	Active
TP002 - CL2	15590	No	Treatment Plant	-	-	Active
TP003 - CL2	15591	No	Treatment Plant	-	-	Active
TP004 - CL2	15592	No	Treatment Plant	-	-	Active
TP005 - CL2	23318	No	Treatment Plant	-	-	Active

1 - 19 of 19

Treatment Processes

Facility Name	Facility ID	Treatment Process	Treatment Objective
TP001 - CL2	1431	Hypochlorination, Post	Disinfection
TP001 - CL2	1431	Chlorination (FRDS-1.5)	Disinfection
TP002 - CL2	15590	Hypochlorination, Post	Disinfection
TP002 - CL2	15590	Chlorination (FRDS-1.5)	Disinfection
TP003 - CL2	15591	Hypochlorination, Post	Disinfection
TP003 - CL2	15591	Chlorination (FRDS-1.5)	Disinfection
TP004 - CL2	15592	Hypochlorination, Post	Disinfection
TP004 - CL2	15592	Chlorination (FRDS-1.5)	Disinfection
TP005 - CL2	23318	Chlorination (FRDS-1.5)	Disinfection

1 - 9 of 9

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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