Safe Drinking Water Information System (SDWIS) Federal Reporting Services

Your Drinking Water Query results from SDWIS Fed Reporting Services

PWS ID	CO0146485
PWS Name	DALLAS CREEK WC
PWS Type	Community water system
Owner Type	Private
Primary Source	Surface water
Primacy Type	State
Is Wholesaler?	No
Population Served	1059
County Served	Ouray

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	Lead Consumer Notice	Lead and Copper Rule	Lead and Copper Rule	2916845	Returned to Compliance	01-JAN-2026	-	No
MR	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	Surface Water Treatment Rule	2916844	Returned to Compliance	01-JUN-2025	30-JUN-2025	No
MON	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	Revised Total Coliform Rule	2916842	Returned to Compliance	01-JUN-2025	30-JUN-2025	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	Chlorine	2916843	Returned to Compliance	01-APR-2025	30-JUN-2025	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	Chlorine	2916841	Returned to Compliance	01-JAN-2025	31-MAR-2025	No
MR	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	Surface Water Treatment Rule	2916840	Returned to Compliance	01-JAN-2025	31-JAN-2025	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	CARBON, TOTAL	2916839	Returned to Compliance	01-JUL-2024	30-SEP-2024	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Tetrachloroethylene	2916823	Returned to Compliance	01-JAN-2008	31-DEC-2008	No
MR	Monitoring, Regular	Volatile Organic Chemicals	CHLOROBENZENE	2916824	Returned to Compliance	01-JAN-2008	31-DEC-2008	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Benzene	2916825	Returned to Compliance	01-JAN-2008	31-DEC-2008	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Toluene	2916826	Returned to Compliance	01-JAN-2008	31-DEC-2008	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Ethylbenzene	2916827	Returned to Compliance	01-JAN-2008	31-DEC-2008	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Styrene	2916828	Returned to Compliance	01-JAN-2008	31-DEC-2008	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,2,4-Trichlorobenzene	2916808	Returned to Compliance	01-JAN-2008	31-DEC-2008	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,1,2-Trichloroethane	2916822	Returned to Compliance	01-JAN-2008	31-DEC-2008	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Trichloroethylene	2916821	Returned to Compliance	01-JAN-2008	31-DEC-2008	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,2-Dichloropropane	2916820	Returned to Compliance	01-JAN-2008	31-DEC-2008	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Carbon tetrachloride	2916819	Returned to Compliance	01-JAN-2008	31-DEC-2008	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,1,1-Trichloroethane	2916818	Returned to Compliance	01-JAN-2008	31-DEC-2008	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,2-Dichloroethane	2916817	Returned to Compliance	01-JAN-2008	31-DEC-2008	No
MR	Monitoring, Regular	Volatile Organic Chemicals	trans-1,2-Dichloroethylene	2916816	Returned to Compliance	01-JAN-2008	31-DEC-2008	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,1-Dichloroethylene	2916815	Returned to Compliance	01-JAN-2008	31-DEC-2008	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Vinyl chloride	2916814	Returned to Compliance	01-JAN-2008	31-DEC-2008	No
MR	Monitoring, Regular	Volatile Organic Chemicals	p-Dichlorobenzene	2916813	Returned to Compliance	01-JAN-2008	31-DEC-2008	No
MR	Monitoring, Regular	Volatile Organic Chemicals	o-Dichlorobenzene	2916812	Returned to Compliance	01-JAN-2008	31-DEC-2008	No
MR	Monitoring, Regular	Volatile Organic Chemicals	DICHLOROMETHANE	2916811	Returned to Compliance	01-JAN-2008	31-DEC-2008	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Xylenes, Total	2916810	Returned to Compliance	01-JAN-2008	31-DEC-2008	No
MR	Monitoring, Regular	Volatile Organic Chemicals	cis-1,2-Dichloroethylene	2916809	Returned to Compliance	01-JAN-2008	31-DEC-2008	No
MR	Monitoring, Regular	Nitrate Rule	Nitrate	2914495	Returned to Compliance	01-JAN-1994	31-DEC-1994	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
3580343	2916845	SOX	State Compliance achieved	26-JAN-2026	State	-
3580335	2916842	SIE	State Public Notification requested	18-JUL-2025	State	-
3580337	2916843	SIE	State Public Notification requested	18-JUL-2025	State	-
3580339	2916844	SIE	State Public Notification requested	18-JUL-2025	State	-
3580333	2916841	SOX	State Compliance achieved	24-FEB-2025	State	System collected next required routine sampling in Feb 2025 lmf 5/5/2025
3580333	2916840	SOX	State Compliance achieved	24-FEB-2025	State	System collected next required routine sampling in Feb 2025 lmf 5/5/2025
3580330	2916839	SOX	State Compliance achieved	30-DEC-2024	State	System sampled next required routine sampling for Q4 2024 lmf 1/30/2025
3580310	2916808	SOX	State Compliance achieved	11-FEB-2009	State	Sampled 12/4/08, recd 2/9/09. 2/11/09 dgj
3580310	2916812	SOX	State Compliance achieved	11-FEB-2009	State	Sampled 12/4/08, recd 2/9/09. 2/11/09 dgj
3580310	2916813	SOX	State Compliance achieved	11-FEB-2009	State	Sampled 12/4/08, recd 2/9/09. 2/11/09 dgj
3580310	2916814	SOX	State Compliance achieved	11-FEB-2009	State	Sampled 12/4/08, recd 2/9/09. 2/11/09 dgj
3580310	2916815	SOX	State Compliance achieved	11-FEB-2009	State	Sampled 12/4/08, recd 2/9/09. 2/11/09 dgj
3580310	2916816	SOX	State Compliance achieved	11-FEB-2009	State	Sampled 12/4/08, recd 2/9/09. 2/11/09 dgj
3580310	2916817	SOX	State Compliance achieved	11-FEB-2009	State	Sampled 12/4/08, recd 2/9/09. 2/11/09 dgj
3580310	2916818	SOX	State Compliance achieved	11-FEB-2009	State	Sampled 12/4/08, recd 2/9/09. 2/11/09 dgj
3580310	2916819	SOX	State Compliance achieved	11-FEB-2009	State	Sampled 12/4/08, recd 2/9/09. 2/11/09 dgj
3580310	2916820	SOX	State Compliance achieved	11-FEB-2009	State	Sampled 12/4/08, recd 2/9/09. 2/11/09 dgj
3580310	2916821	SOX	State Compliance achieved	11-FEB-2009	State	Sampled 12/4/08, recd 2/9/09. 2/11/09 dgj
3580310	2916822	SOX	State Compliance achieved	11-FEB-2009	State	Sampled 12/4/08, recd 2/9/09. 2/11/09 dgj
3580310	2916823	SOX	State Compliance achieved	11-FEB-2009	State	Sampled 12/4/08, recd 2/9/09. 2/11/09 dgj
3580310	2916824	SOX	State Compliance achieved	11-FEB-2009	State	Sampled 12/4/08, recd 2/9/09. 2/11/09 dgj
3580310	2916825	SOX	State Compliance achieved	11-FEB-2009	State	Sampled 12/4/08, recd 2/9/09. 2/11/09 dgj
3580310	2916826	SOX	State Compliance achieved	11-FEB-2009	State	Sampled 12/4/08, recd 2/9/09. 2/11/09 dgj
3580310	2916827	SOX	State Compliance achieved	11-FEB-2009	State	Sampled 12/4/08, recd 2/9/09. 2/11/09 dgj
3580310	2916828	SOX	State Compliance achieved	11-FEB-2009	State	Sampled 12/4/08, recd 2/9/09. 2/11/09 dgj
3580310	2916810	SOX	State Compliance achieved	11-FEB-2009	State	Sampled 12/4/08, recd 2/9/09. 2/11/09 dgj
3580310	2916811	SOX	State Compliance achieved	11-FEB-2009	State	Sampled 12/4/08, recd 2/9/09. 2/11/09 dgj
3580310	2916809	SOX	State Compliance achieved	11-FEB-2009	State	Sampled 12/4/08, recd 2/9/09. 2/11/09 dgj
2914495	2914495	SO6	State Intentional no-action	06-MAR-1995	State	-

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All Facilities

Facility Name	Facility ID	Is Source	Facility Type Description	Water Type Description	Availability Description	Facility Activity Status
INF GAL NO 1 ON DALLAS CREEK	2958	Yes	Infiltration Gallery	Surface water	Permanent	Active
DISTRIBUTION SYSTEM	7105	No	Distribution System/Zone	-	-	Active
INTAKE PUMP FACILITY	17070	No	Pump Facility	-	-	Inactive
FINISHED WATER PUMP FACILITY	17071	No	Pump Facility	-	-	Inactive
MIDPOINT PUMP STATION	469	No	Pump Facility	-	-	Inactive
COMBINED RAW SOURCE	14723	No	Sampling Station	-	-	Active
PIPE FOR CT	23071	No	Sampling Station	-	-	Active
OLD STORAGE TANK	17068	No	Storage	-	-	Active
NEW STORAGE TANK	17069	No	Storage	-	-	Active
DALLAS CREEK SWTP01	4307	No	Treatment Plant	-	-	Active

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Treatment Processes

Facility Name	Facility ID	Treatment Process	Treatment Objective
DALLAS CREEK SWTP01	4307	Coagulation	Particulate removal
DALLAS CREEK SWTP01	4307	Flocculation	Particulate removal
DALLAS CREEK SWTP01	4307	Sedimentation	Particulate removal
DALLAS CREEK SWTP01	4307	Filtration, Rapid Sand	Particulate removal
DALLAS CREEK SWTP01	4307	Hypochlorination, Post	Disinfection
DALLAS CREEK SWTP01	4307	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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