Safe Drinking Water Information System (SDWIS) Federal Reporting Services

Your Drinking Water Query results from SDWIS Fed Reporting Services

PWS ID	CO0107473
PWS Name	LAFAYETTE CITY OF
PWS Type	Community water system
Owner Type	Local government
Primary Source	Surface water
Primacy Type	State
Is Wholesaler?	No
Population Served	28700
County Served	Boulder

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, Turbidity (Enhanced SWTR)	Interim and Long Term 1 Enhanced Surface Water Treatment Rule	Interim Enhanced Surface Water Treatment Rule	4002677	Returned to Compliance	01-DEC-2025	31-DEC-2025	No
MR	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	Surface Water Treatment Rule	4002678	Returned to Compliance	01-DEC-2025	31-DEC-2025	No
RPT	Report Sample Result/Fail Monitor (RTCR)	Revised Total Coliform Rule	Revised Total Coliform Rule	4002675	Returned to Compliance	01-JUL-2025	-	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	Chlorine	4002676	Returned to Compliance	01-JUL-2025	30-SEP-2025	No
MR	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	Surface Water Treatment Rule	4002674	Returned to Compliance	01-JUL-2025	31-JUL-2025	No
Other	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	Consumer Confidence Rule	4002671	Returned to Compliance	01-JUL-2021	-	No
MR	Monitoring, Turbidity (Enhanced SWTR)	Interim and Long Term 1 Enhanced Surface Water Treatment Rule	Interim Enhanced Surface Water Treatment Rule	4002668	Returned to Compliance	01-JUL-2020	31-JUL-2020	No
Other	Sample Siting Plan Errors (RTCR)	Revised Total Coliform Rule	Revised Total Coliform Rule	4002666	Returned to Compliance	08-NOV-2019	-	No
MR	Lead Consumer Notice	Lead and Copper Rule	Lead and Copper Rule	4002653	Returned to Compliance	01-JAN-2018	-	No
MR	Monitoring, Source Water (LT2)	Long Term 2 Enhanced Surface Water Treatment Rule	E. COLI	4002652	Returned to Compliance	01-FEB-2017	28-FEB-2017	No
MR	Monitoring, Regular	Inorganic Chemicals	Barium	4002655	Returned to Compliance	01-JAN-2017	31-DEC-2017	No
MR	Monitoring, Regular	Inorganic Chemicals	Cadmium	4002656	Returned to Compliance	01-JAN-2017	31-DEC-2017	No
MR	Monitoring, Regular	Inorganic Chemicals	Mercury	4002658	Returned to Compliance	01-JAN-2017	31-DEC-2017	No
MR	Monitoring, Regular	Inorganic Chemicals	Nickel	4002659	Returned to Compliance	01-JAN-2017	31-DEC-2017	No
MR	Monitoring, Regular	Inorganic Chemicals	Selenium	4002664	Returned to Compliance	01-JAN-2017	31-DEC-2017	No
MR	Monitoring, Regular	Inorganic Chemicals	Antimony, Total	4002661	Returned to Compliance	01-JAN-2017	31-DEC-2017	No
MR	Monitoring, Regular	Inorganic Chemicals	Beryllium, Total	4002662	Returned to Compliance	01-JAN-2017	31-DEC-2017	No
MR	Monitoring, Regular	Inorganic Chemicals	Thallium, Total	4002663	Returned to Compliance	01-JAN-2017	31-DEC-2017	No
MR	Monitoring, Regular	Inorganic Chemicals	Chromium	4002657	Returned to Compliance	01-JAN-2017	31-DEC-2017	No
MR	Monitoring, Regular	Arsenic Rule	Arsenic	4002654	Returned to Compliance	01-JAN-2017	31-DEC-2017	No
MR	Monitoring, Source Water (LT2)	Long Term 2 Enhanced Surface Water Treatment Rule	E. COLI	4002651	Returned to Compliance	01-JAN-2017	31-JAN-2017	No
MR	Monitoring, Source Water (LT2)	Long Term 2 Enhanced Surface Water Treatment Rule	E. COLI	4002650	Returned to Compliance	01-DEC-2016	31-DEC-2016	No
MR	Monitoring, Source Water (LT2)	Long Term 2 Enhanced Surface Water Treatment Rule	E. COLI	4002649	Returned to Compliance	01-NOV-2016	30-NOV-2016	No
MR	Monitoring, Source Water (LT2)	Long Term 2 Enhanced Surface Water Treatment Rule	E. COLI	4002648	Returned to Compliance	01-OCT-2016	31-OCT-2016	No
MR	Monitoring and Reporting (DBP)	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	4002647	Returned to Compliance	01-JUL-2015	30-SEP-2015	No
MCL	Maximum Contaminant Level Violation, Acute (TCR)	Total Coliform Rule	Coliform (TCR)	4002646	Returned to Compliance	01-OCT-2013	31-OCT-2013	Yes
MR	Monitoring, Regular	Synthetic Organic Chemicals	Di(2-ethylhexyl) phthalate	4002608	Returned to Compliance	01-JUL-2007	30-SEP-2007	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	TTHM	4002507	Returned to Compliance	01-APR-2007	30-JUN-2007	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	Total Haloacetic Acids (HAA5)	4002407	Returned to Compliance	01-APR-2007	30-JUN-2007	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Total Polychlorinated Biphenyls (PCB)	4002637	Returned to Compliance	01-JAN-2005	31-DEC-2007	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Heptachlor epoxide	4002631	Returned to Compliance	01-JAN-2005	31-DEC-2007	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Heptachlor	4002630	Returned to Compliance	01-JAN-2005	31-DEC-2007	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	LASSO	4002629	Returned to Compliance	01-JAN-2005	31-DEC-2007	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Atrazine	4002628	Returned to Compliance	01-JAN-2005	31-DEC-2007	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Aldicarb	4002627	Returned to Compliance	01-JAN-2005	31-DEC-2007	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Carbofuran	4002626	Returned to Compliance	01-JAN-2005	31-DEC-2007	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Aldicarb sulfone	4002625	Returned to Compliance	01-JAN-2005	31-DEC-2007	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Aldicarb sulfoxide	4002624	Returned to Compliance	01-JAN-2005	31-DEC-2007	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Hexachlorocyclopentadiene	4002623	Returned to Compliance	01-JAN-2005	31-DEC-2007	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Dinoseb	4002622	Returned to Compliance	01-JAN-2005	31-DEC-2007	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Picloram	4002621	Returned to Compliance	01-JAN-2005	31-DEC-2007	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Di(2-ethylhexyl) phthalate	4002620	Returned to Compliance	01-JAN-2005	31-DEC-2007	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Simazine	4002619	Returned to Compliance	01-JAN-2005	31-DEC-2007	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	OXAMYL	4002618	Returned to Compliance	01-JAN-2005	31-DEC-2007	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Di(2-ethylhexyl) adipate	4002617	Returned to Compliance	01-JAN-2005	31-DEC-2007	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Endothall	4002616	Returned to Compliance	01-JAN-2005	31-DEC-2007	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Diquat	4002615	Returned to Compliance	01-JAN-2005	31-DEC-2007	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Dalapon	4002614	Returned to Compliance	01-JAN-2005	31-DEC-2007	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Toxaphene	4002613	Returned to Compliance	01-JAN-2005	31-DEC-2007	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Methoxychlor	4002612	Returned to Compliance	01-JAN-2005	31-DEC-2007	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
4028495	4002678	SOX	State Compliance achieved	16-JAN-2026	State	SOX, Dec 2025 MOR submitted late
4028495	4002677	SOX	State Compliance achieved	16-JAN-2026	State	SOX, Dec 2025 MOR submitted late
4028485	4002674	SIE	State Public Notification requested	14-AUG-2025	State	-
4028487	4002675	SIE	State Public Notification requested	14-AUG-2025	State	-
4028489	4002676	SIE	State Public Notification requested	14-AUG-2025	State	-
4028475	4002671	SOX	State Compliance achieved	14-JUL-2021	State	-
4028480	4002668	SOX	State Compliance achieved	01-OCT-2020	State	-
4028465	4002666	SOX	State Compliance achieved	20-DEC-2019	State	-
4028456	4002651	SIF	State Public Notification received	28-JUN-2018	State	-
4028456	4002652	SIF	State Public Notification received	28-JUN-2018	State	-
4028456	4002654	SIF	State Public Notification received	28-JUN-2018	State	-
4028456	4002655	SIF	State Public Notification received	28-JUN-2018	State	-
4028456	4002656	SIF	State Public Notification received	28-JUN-2018	State	-
4028456	4002658	SIF	State Public Notification received	28-JUN-2018	State	-
4028456	4002659	SIF	State Public Notification received	28-JUN-2018	State	-
4028456	4002661	SIF	State Public Notification received	28-JUN-2018	State	-
4028456	4002662	SIF	State Public Notification received	28-JUN-2018	State	-
4028456	4002663	SIF	State Public Notification received	28-JUN-2018	State	-
4028456	4002664	SIF	State Public Notification received	28-JUN-2018	State	-
4028456	4002650	SIF	State Public Notification received	28-JUN-2018	State	-
4028456	4002649	SIF	State Public Notification received	28-JUN-2018	State	-
4028456	4002648	SIF	State Public Notification received	28-JUN-2018	State	-
4028456	4002657	SIF	State Public Notification received	28-JUN-2018	State	-
4028454	4002653	SOX	State Compliance achieved	03-APR-2018	State	Proper public education was completed in conjunction with their T3 PN. Bob 16 Apr 18;
4028434	4002647	SOX	State Compliance achieved	31-MAR-2016	State	-
4028431	4002646	SOX	State Compliance achieved	01-MAY-2014	State	clean for six months
4028424	4002614	SOX	State Compliance achieved	16-SEP-2009	State	RTC w/ receipt of samples satisfying 2008-2010 SOC monitoring requirements. scs 9/16/09
4028424	4002640	SOX	State Compliance achieved	16-SEP-2009	State	RTC w/ receipt of samples satisfying 2008-2010 SOC monitoring requirements. scs 9/16/09
4028424	4002639	SOX	State Compliance achieved	16-SEP-2009	State	RTC w/ receipt of samples satisfying 2008-2010 SOC monitoring requirements. scs 9/16/09
4028424	4002638	SOX	State Compliance achieved	16-SEP-2009	State	RTC w/ receipt of samples satisfying 2008-2010 SOC monitoring requirements. scs 9/16/09
4028424	4002637	SOX	State Compliance achieved	16-SEP-2009	State	RTC w/ receipt of samples satisfying 2008-2010 SOC monitoring requirements. scs 9/16/09
4028424	4002636	SOX	State Compliance achieved	16-SEP-2009	State	RTC w/ receipt of samples satisfying 2008-2010 SOC monitoring requirements. scs 9/16/09
4028424	4002635	SOX	State Compliance achieved	16-SEP-2009	State	RTC w/ receipt of samples satisfying 2008-2010 SOC monitoring requirements. scs 9/16/09
4028424	4002634	SOX	State Compliance achieved	16-SEP-2009	State	RTC w/ receipt of samples satisfying 2008-2010 SOC monitoring requirements. scs 9/16/09
4028424	4002633	SOX	State Compliance achieved	16-SEP-2009	State	RTC w/ receipt of samples satisfying 2008-2010 SOC monitoring requirements. scs 9/16/09
4028424	4002632	SOX	State Compliance achieved	16-SEP-2009	State	RTC w/ receipt of samples satisfying 2008-2010 SOC monitoring requirements. scs 9/16/09
4028424	4002631	SOX	State Compliance achieved	16-SEP-2009	State	RTC w/ receipt of samples satisfying 2008-2010 SOC monitoring requirements. scs 9/16/09
4028424	4002630	SOX	State Compliance achieved	16-SEP-2009	State	RTC w/ receipt of samples satisfying 2008-2010 SOC monitoring requirements. scs 9/16/09
4028424	4002610	SOX	State Compliance achieved	16-SEP-2009	State	RTC w/ receipt of samples satisfying 2008-2010 SOC monitoring requirements. scs 9/16/09
4028424	4002611	SOX	State Compliance achieved	16-SEP-2009	State	RTC w/ receipt of samples satisfying 2008-2010 SOC monitoring requirements. scs 9/16/09
4028424	4002612	SOX	State Compliance achieved	16-SEP-2009	State	RTC w/ receipt of samples satisfying 2008-2010 SOC monitoring requirements. scs 9/16/09
4028424	4002613	SOX	State Compliance achieved	16-SEP-2009	State	RTC w/ receipt of samples satisfying 2008-2010 SOC monitoring requirements. scs 9/16/09
4028424	4002615	SOX	State Compliance achieved	16-SEP-2009	State	RTC w/ receipt of samples satisfying 2008-2010 SOC monitoring requirements. scs 9/16/09
4028424	4002616	SOX	State Compliance achieved	16-SEP-2009	State	RTC w/ receipt of samples satisfying 2008-2010 SOC monitoring requirements. scs 9/16/09
4028424	4002617	SOX	State Compliance achieved	16-SEP-2009	State	RTC w/ receipt of samples satisfying 2008-2010 SOC monitoring requirements. scs 9/16/09
4028424	4002618	SOX	State Compliance achieved	16-SEP-2009	State	RTC w/ receipt of samples satisfying 2008-2010 SOC monitoring requirements. scs 9/16/09
4028424	4002619	SOX	State Compliance achieved	16-SEP-2009	State	RTC w/ receipt of samples satisfying 2008-2010 SOC monitoring requirements. scs 9/16/09
4028424	4002620	SOX	State Compliance achieved	16-SEP-2009	State	RTC w/ receipt of samples satisfying 2008-2010 SOC monitoring requirements. scs 9/16/09
4028424	4002621	SOX	State Compliance achieved	16-SEP-2009	State	RTC w/ receipt of samples satisfying 2008-2010 SOC monitoring requirements. scs 9/16/09
4028424	4002622	SOX	State Compliance achieved	16-SEP-2009	State	RTC w/ receipt of samples satisfying 2008-2010 SOC monitoring requirements. scs 9/16/09

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All Facilities

Facility Name	Facility ID	Is Source	Facility Type Description	Water Type Description	Availability Description	Facility Activity Status
WANEKA RESERVOIR	85	Yes	Intake	Surface water	Emergency	Active
GOOSE HAVEN RESERVOIR NO 2	86	Yes	Intake	Surface water	Permanent	Active
BASELINE RESERVOIR	84	Yes	Intake	Surface water	Permanent	Active
GOOSE HAVEN RESERVOIR NO 1	25923	Yes	Intake	Surface water	Permanent	Active
DISTRIBUTION SYSTEM	6486	No	Distribution System/Zone	-	-	Active
BASELINE RAW WATER PUMPSTATION	19498	No	Pump Facility	-	-	Active
COMBINED RAW SOURCE	13975	No	Sampling Station	-	-	Active
SPLITTER BOX SAMPLING STATIION	0	No	Sampling Station	-	-	Inactive
RED ZONE TANK	13855	No	Storage	-	-	Active
ORANGE ZONE TANK	13856	No	Storage	-	-	Active
BLUE ZONE TANK	13857	No	Storage	-	-	Active
CLEARWELL	23076	No	Storage	-	-	Active
SPLITTER BOX TANK	23125	No	Storage	-	-	Active
RED ZONE PINK TANK	23415	No	Storage	-	-	Active
MERRY LANE CHLORINE BOOSTER STATION	16464	No	Treatment Plant	-	-	Active
SOUTH BOULDER CHLORINE BOOSTER STATION	16465	No	Treatment Plant	-	-	Active
RED ZONE PINK TANK CHLORINE BOOSTER STA	25967	No	Treatment Plant	-	-	Active
BASELINE WTP	3430	No	Treatment Plant	-	-	Active
BLUE ZONE TNK CHLORINE BOOSTER STATION	16462	No	Treatment Plant	-	-	Inactive
RED ZONE TNK CHLORINE BOOSTER STATION	16463	No	Treatment Plant	-	-	Inactive
BASELINE NORTH SWTP02 EMERGENCY	3429	No	Treatment Plant	-	-	Inactive

1 - 21 of 21

Treatment Processes

Facility Name	Facility ID	Treatment Process	Treatment Objective
BLUE ZONE TNK CHLORINE BOOSTER STATION	16462	Hypochlorination, Post	Disinfection
RED ZONE TNK CHLORINE BOOSTER STATION	16463	Hypochlorination, Post	Disinfection
MERRY LANE CHLORINE BOOSTER STATION	16464	Hypochlorination, Post	Disinfection
SOUTH BOULDER CHLORINE BOOSTER STATION	16465	Hypochlorination, Post	Disinfection
RED ZONE PINK TANK CHLORINE BOOSTER STA	25967	Hypochlorination, Post	Disinfection
BASELINE NORTH SWTP02 EMERGENCY	3429	Sedimentation	Particulate removal
BASELINE NORTH SWTP02 EMERGENCY	3429	Filtration, Rapid Sand	Particulate removal
BASELINE NORTH SWTP02 EMERGENCY	3429	Coagulation	Particulate removal
BASELINE NORTH SWTP02 EMERGENCY	3429	Hypochlorination, Post	Disinfection
BASELINE WTP	3430	Algae Control	Disinfection by-products control
BASELINE WTP	3430	Permanganate	Manganese removal
BASELINE WTP	3430	Activated Carbon, Powdered	Taste / odor control
BASELINE WTP	3430	Hypochlorination, Post	Disinfection
BASELINE WTP	3430	Fluoridation	Other
BASELINE WTP	3430	Innovative	Disinfection
BASELINE WTP	3430	Sedimentation	Particulate removal
BASELINE WTP	3430	Flocculation	Particulate removal
BASELINE WTP	3430	Coagulation	Particulate removal
BASELINE WTP	3430	Filtration, Rapid Sand	Particulate removal
BASELINE WTP	3430	Innovative	Corrosion control

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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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