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Your Drinking Water Query results from SDWIS Fed Reporting Services

PWS ID	CO0121075
PWS Name	CALHAN TOWN OF
PWS Type	Community water system
Owner Type	Local government
Primary Source	Ground water
Primacy Type	State
Is Wholesaler?	No
Population Served	780
County Served	El Paso

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	Follow-up Or Routine LCR Tap M/R	Lead and Copper Rule	Lead and Copper Rule	1871	Returned to Compliance	01-JAN-2026	-	No
RPT	Notification, Known or Potential LSL	Lead and Copper Rule Revisions	LEAD AND COPPER RULE REVISIONS	1870	Returned to Compliance	02-JUL-2025	-	No
MR	Lead Consumer Notice	Lead and Copper Rule	Lead and Copper Rule	1869	Returned to Compliance	01-APR-2025	-	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Di(2-ethylhexyl) phthalate	1868	Returned to Compliance	01-JUL-2023	30-SEP-2023	No
MR	Monitoring and Reporting (DBP)	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	1866	Returned to Compliance	01-JAN-2023	31-DEC-2023	No
MR	Monitoring and Reporting (DBP)	Stage 2 Disinfectants and Disinfection Byproducts Rule	Total Haloacetic Acids (HAA5)	1867	Returned to Compliance	01-JAN-2023	31-DEC-2023	No
Other	Public Notification Violation without NPDWR Violation	Public Notice Rule and Revised PN Rule	Public Notice	1865	Returned to Compliance	12-MAR-2022	-	No
TT	Treatment Technique No Certif. Operator	Stage 1 Disinfectants and Disinfection Byproducts Rule	Stage 1 Disinfectants and Disinfection Byproducts Rule	1859	Returned to Compliance	01-APR-2021	-	Yes
Other	Public Notification Violation without NPDWR Violation	Public Notice Rule and Revised PN Rule	Public Notice	1856	Returned to Compliance	11-NOV-2018	-	No
Other	Sample Siting Plan Errors (RTCR)	Revised Total Coliform Rule	Revised Total Coliform Rule	1855	Returned to Compliance	11-OCT-2018	-	No
MR	Follow-up Or Routine LCR Tap M/R	Lead and Copper Rule	Lead and Copper Rule	1845	Returned to Compliance	01-OCT-2011	-	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	2,4-D	1842	Returned to Compliance	01-JUL-2011	30-SEP-2011	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Pentachlorophenol	1841	Returned to Compliance	01-JUL-2011	30-SEP-2011	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Dalapon	1843	Returned to Compliance	01-JUL-2011	30-SEP-2011	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Di(2-ethylhexyl) adipate	1851	Returned to Compliance	01-JAN-2011	31-DEC-2013	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Di(2-ethylhexyl) phthalate	1849	Returned to Compliance	01-JAN-2011	31-DEC-2013	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Atrazine	1848	Returned to Compliance	01-JAN-2011	31-DEC-2013	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	LASSO	1847	Returned to Compliance	01-JAN-2011	31-DEC-2013	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Benzo(a)pyrene	1846	Returned to Compliance	01-JAN-2011	31-DEC-2013	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Simazine	1850	Returned to Compliance	01-JAN-2011	31-DEC-2013	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Endothall	1840	Returned to Compliance	01-JAN-2008	31-DEC-2010	No
Other	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	Consumer Confidence Rule	104	Returned to Compliance	01-JUL-2004	-	No

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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
293	1871	SOX	State Compliance achieved	29-JAN-2026	State	52 vio RTC through lab resubmitting complete dataset fixing the incorrectly labeled samples that suggested high risk sampling didn't occur, retain both 90ths in records to show why the vio was issued (lfra 01/29/26);
289	1870	SIE	State Public Notification requested	25-JUL-2025	State	-
286	1869	SIE	State Public Notification requested	23-APR-2025	State	-
284	1867	SOX	State Compliance achieved	18-JUL-2024	State	FTM for CDBP in 2023 RTC through timely 2024 samples collected 07/18/24 reported 08/05/24 (lfra 11/12/24);
284	1866	SOX	State Compliance achieved	18-JUL-2024	State	FTM for CDBP in 2023 RTC through timely 2024 samples collected 07/18/24 reported 08/05/24 (lfra 11/12/24);
283	1868	SOX	State Compliance achieved	27-OCT-2023	State	Q4 sample results received 10/27/23 (lfra 12/12/23)
278	1865	SOX	State Compliance achieved	31-MAR-2022	State	-
258	1859	SIF	State Public Notification received	30-APR-2021	State	-
254	1855	SIF	State Public Notification received	26-JUN-2019	State	-
251	1856	SOX	State Compliance achieved	28-FEB-2019	State	-
234	1848	SOX	State Compliance achieved	03-MAR-2015	State	Sample collected 07/02/2014. 3/3/15 ttj
234	1847	SOX	State Compliance achieved	03-MAR-2015	State	Sample collected 07/02/2014. 3/3/15 ttj
234	1846	SOX	State Compliance achieved	03-MAR-2015	State	Sample collected 07/02/2014. 3/3/15 ttj
234	1849	SOX	State Compliance achieved	03-MAR-2015	State	Sample collected 07/02/2014. 3/3/15 ttj
234	1851	SOX	State Compliance achieved	03-MAR-2015	State	Sample collected 07/02/2014. 3/3/15 ttj
234	1850	SOX	State Compliance achieved	03-MAR-2015	State	Sample collected 07/02/2014. 3/3/15 ttj
220	1845	SOX	State Compliance achieved	28-AUG-2012	State	rec'd 2012 results
221	1843	SIF	State Public Notification received	25-MAY-2012	State	PN performed via CCR, 23 May, 2012
221	1841	SIF	State Public Notification received	25-MAY-2012	State	PN performed via CCR, 23 May, 2012
221	1842	SIF	State Public Notification received	25-MAY-2012	State	PN performed via CCR, 23 May, 2012
210	1840	SOX	State Compliance achieved	09-MAR-2011	State	rec'd endothall result
204	104	SOX	State Compliance achieved	23-SEP-2004	State	-

1 - 22 of 22

All Facilities

Facility Name	Facility ID	Is Source	Facility Type Description	Water Type Description	Availability Description	Facility Activity Status
WELL NO 1 TOWER WELL	2136	Yes	Well	Ground water	Permanent	Active
WELL NO 3 RAILROAD WELL	2138	Yes	Well	Ground water	Permanent	Active
WELL NO 2 GORDON WELL	2137	Yes	Well	Ground water	Permanent	Active
DISTRIBUTION SYSTEM	6668	No	Distribution System/Zone	-	-	Active
WEST HAHN ROAD TANK	13864	No	Storage	-	-	Active
EAST TANK CALHAN HWY	13865	No	Storage	-	-	Active
CHLORINATOR FOR WELL 1 TOWER WELL	3683	No	Treatment Plant	-	-	Active
CHLORINATOR FOR WELL 2 GORDON WELL	3684	No	Treatment Plant	-	-	Active
CHLORINATOR FOR WELL 3 RAILROAD WELL	3685	No	Treatment Plant	-	-	Active

1 - 9 of 9

Treatment Processes

Facility Name	Facility ID	Treatment Process	Treatment Objective
CHLORINATOR FOR WELL 1 TOWER WELL	3683	Hypochlorination, Post	Disinfection
CHLORINATOR FOR WELL 1 TOWER WELL	3683	Innovative	Disinfection
CHLORINATOR FOR WELL 2 GORDON WELL	3684	Hypochlorination, Post	Disinfection
CHLORINATOR FOR WELL 2 GORDON WELL	3684	Innovative	Disinfection
CHLORINATOR FOR WELL 3 RAILROAD WELL	3685	Hypochlorination, Post	Disinfection
CHLORINATOR FOR WELL 3 RAILROAD WELL	3685	Innovative	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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