Safe Drinking Water Information System (SDWIS) Federal Reporting Services

Your Drinking Water Query results from SDWIS Fed Reporting Services

PWS ID	CO0118015
PWS Name	HIGHLANDS RANCH WSD
PWS Type	Community water system
Owner Type	Local government
Primary Source	Surface water
Primacy Type	State
Is Wholesaler?	No
Population Served	103444
County Served	Douglas

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	Water Quality Parameter M/R	Lead and Copper Rule	Lead and Copper Rule	15197	Returned to Compliance	01-JUL-2020	31-DEC-2020	No
MR	Monitoring, Source Water (LT2)	Long Term 2 Enhanced Surface Water Treatment Rule	E. COLI	15196	Returned to Compliance	01-APR-2017	30-APR-2017	No
MR	Monitoring, Source Water (LT2)	Long Term 2 Enhanced Surface Water Treatment Rule	Cryptosporidium	15194	Returned to Compliance	01-APR-2017	30-APR-2017	No
MR	Monitoring, Source Water (LT2)	Long Term 2 Enhanced Surface Water Treatment Rule	Turbidity	15195	Returned to Compliance	01-APR-2017	30-APR-2017	No

1 - 4 of 4

Enforcement Actions

Latest Enforcement ID	Associated To Violation ID	Enforcement Action Type Code	Enforcement Action Description	Enforcement Date	Originator Description	Enforcement Comment
1417	15197	SOX	State Compliance achieved	01-JUL-2021	State	-
1414	15196	SOX	State Compliance achieved	28-AUG-2017	State	-
1414	15194	SOX	State Compliance achieved	28-AUG-2017	State	-
1414	15195	SOX	State Compliance achieved	28-AUG-2017	State	-

1 - 4 of 4

All Facilities

Facility Name	Facility ID	Is Source	Facility Type Description	Water Type Description	Availability Description	Facility Activity Status
PURCHASED FROM CO0116001	23636	Yes	Consecutive Connection	Surface water	Emergency	Active
WELL A2	1968	Yes	Well	Ground water	Seasonal	Inactive
WELL A8	1944	Yes	Well	Ground water	Seasonal	Inactive
PA-7S REDRILL	21476	Yes	Well	Ground water	Seasonal	Active
WELL A4	1971	Yes	Well	Ground water	Seasonal	Active
WELL A3	1970	Yes	Well	Ground water	Seasonal	Active
WELL TD10	1966	Yes	Well	Ground water	Seasonal	Active
WELL A1	1965	Yes	Well	Ground water	Seasonal	Active
WELL TD9	1964	Yes	Well	Ground water	Seasonal	Active
WELL TD8	1963	Yes	Well	Ground water	Seasonal	Active
WELL TD7	1962	Yes	Well	Ground water	Seasonal	Active
WELL D20	1961	Yes	Well	Ground water	Seasonal	Active
WELL D18	1960	Yes	Well	Ground water	Seasonal	Active
WELL D17	1959	Yes	Well	Ground water	Seasonal	Active
WELL D16	1958	Yes	Well	Ground water	Seasonal	Active
WELL D14	1957	Yes	Well	Ground water	Seasonal	Active
WELL A13R	1955	Yes	Well	Ground water	Seasonal	Active
WELL A10R	1952	Yes	Well	Ground water	Seasonal	Active
WELL A9R	1951	Yes	Well	Ground water	Seasonal	Active
WELL D19	1950	Yes	Well	Ground water	Seasonal	Active
WELL D15	1949	Yes	Well	Ground water	Seasonal	Active
WELL D13	1948	Yes	Well	Ground water	Seasonal	Active
WELL D11	1947	Yes	Well	Ground water	Seasonal	Active
WELL A11R	18552	Yes	Well	Ground water	Seasonal	Active
WELL A7R	18550	Yes	Well	Ground water	Seasonal	Active
WELL A5R	18549	Yes	Well	Ground water	Seasonal	Active
WELL D10A	17318	Yes	Well	Ground water	Seasonal	Active
WELL LFH15	14143	Yes	Well	Ground water	Seasonal	Active
WELL LFH14R	14142	Yes	Well	Ground water	Seasonal	Active
WELL LFH13	14141	Yes	Well	Ground water	Seasonal	Active
WELL LFH11	14140	Yes	Well	Ground water	Seasonal	Active
WELL LFH9	14138	Yes	Well	Ground water	Seasonal	Active
WELL LFH8R	14137	Yes	Well	Ground water	Seasonal	Active
WELL LFH7	14136	Yes	Well	Ground water	Seasonal	Active
WELL D12R	14134	Yes	Well	Ground water	Seasonal	Active
WELL A12R	14132	Yes	Well	Ground water	Seasonal	Active
WELL A6R	14131	Yes	Well	Ground water	Seasonal	Active
WELL TD12	14130	Yes	Well	Ground water	Seasonal	Active
WELL TD6	14129	Yes	Well	Ground water	Seasonal	Active
WELL TD5	14128	Yes	Well	Ground water	Seasonal	Active
WELL TD4	14127	Yes	Well	Ground water	Seasonal	Active
WELL SP-12	20933	Yes	Well	Ground water under the influence of surface water	Seasonal	Active
WELL SP-11	20932	Yes	Well	Ground water under the influence of surface water	Seasonal	Active
WELL SP-10	20931	Yes	Well	Ground water under the influence of surface water	Seasonal	Active
WELL SP-9	20930	Yes	Well	Ground water under the influence of surface water	Seasonal	Active
WELL A6M	1973	Yes	Well	Ground water	Permanent	Inactive
WELL A5M	1972	Yes	Well	Ground water	Permanent	Inactive
WELL PA7	1969	Yes	Well	Ground water	Permanent	Inactive
WELL D12M	1956	Yes	Well	Ground water	Permanent	Inactive
WELL A12M	1954	Yes	Well	Ground water	Permanent	Inactive

1 - 50 of 110

Treatment Processes

Facility Name	Facility ID	Treatment Process	Treatment Objective
CHLORINATOR FOR WELL D9	13955	Hypochlorination, Post	Disinfection
CHLORINATOR FOR WELLS LFH2 AND D1	14144	Hypochlorination, Post	Disinfection
CHLORINATOR FOR WELL LFH10R	14145	Hypochlorination, Post	Disinfection
CHLORINATOR FOR D10A	17319	Hypochlorination, Post	Disinfection
CHLORINATOR FOR WELL D7 AND LFH4	17374	Hypochlorination, Post	Disinfection
JOSEPH BLAKE FILTER PLANT	3571	Activated Carbon, Powdered	Taste / odor control
JOSEPH BLAKE FILTER PLANT	3571	Filtration, Rapid Sand	Particulate removal
JOSEPH BLAKE FILTER PLANT	3571	Gaseous Chlorination, Post	Disinfection
JOSEPH BLAKE FILTER PLANT	3571	Innovative	Corrosion control
JOSEPH BLAKE FILTER PLANT	3571	Chloramines	Disinfection by-products control
JOSEPH BLAKE FILTER PLANT	3571	Permanganate	Taste / odor control
JOSEPH BLAKE FILTER PLANT	3571	Coagulation	Particulate removal
JOSEPH BLAKE FILTER PLANT	3571	Flocculation	Particulate removal
JOSEPH BLAKE FILTER PLANT	3571	Sedimentation	Particulate removal
CHLORINATOR FOR WELL D5	3572	Hypochlorination, Post	Disinfection
GWTP NO 1 FOR ZONE 4 WELLS	3573	Chloramines	Disinfection by-products control
GWTP NO 1 FOR ZONE 4 WELLS	3573	pH Adjustment, Post	Corrosion control
GWTP NO 1 FOR ZONE 4 WELLS	3573	Hypochlorination, Pre	Disinfection
GWTP NO 1 FOR ZONE 4 WELLS	3573	Filtration, Greensand	Iron removal
GWTP NO 1 FOR ZONE 4 WELLS	3573	Filtration, Greensand	Manganese removal
GWTP NO 1 FOR ZONE 4 WELLS	3573	Innovative	Disinfection
GWTP NO 1 FOR ZONE 4 WELLS	3573	4-Log Treatment of Viruses	Disinfection
CHLORINATOR FOR WELL LFH3	3574	Hypochlorination, Post	Disinfection
GWTP NO 2 ZONE 5 WELLS	3575	Chloramines	Disinfection by-products control
GWTP NO 2 ZONE 5 WELLS	3575	pH Adjustment, Post	Corrosion control
GWTP NO 2 ZONE 5 WELLS	3575	Hypochlorination, Pre	Disinfection
GWTP NO 2 ZONE 5 WELLS	3575	Filtration, Greensand	Iron removal
GWTP NO 2 ZONE 5 WELLS	3575	Innovative	Disinfection
GWTP NO 2 ZONE 5 WELLS	3575	4-Log Treatment of Viruses	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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