Our water treatment facility

Water Quality

Two independent and separate water treatment systems supply water to our customers

Both systems provide high-quality drinking water and meet or exceed all requirements of the Safe Drinking Water Act. All treatment plants are operated by certified class “A” operators as required by EPA regulations.

Denver Water Treatment facilities supply approximately 60 percent of Consolidated’s service area.

Denver Water Treatment Plant rendering

Consolidated’s Maple Grove Treatment Plant supplies the remaining 40 percent of our customers.

Our water treatment facility
The 2023 Water Quality Report: Denver Water
The 2023 Water Quality Report: Maple Grove

Click on the buttons for a summary of water quality for each system along with details about where your water comes from, what it contains and how it compares to standards set by regulatory agencies. Certified laboratories complete all reportable water analysis to ensure compliance with all regulations.

Our water treatment facility on The dam on Maple Grove Reservoir

Maple Grove Water Treatment Facility

Our Maple Grove Water Treatment Facility has 23 on-line instruments that continuously monitor water quality. Calibration of our instruments occurs on a regular basis, and the instruments are also verified by our staff daily in our laboratory. Furthermore, nine different water quality analyses are performed daily to optimize the quality of finished water, and our staff performs over 12,000 water quality tests annually.

In addition, our Staff monitors water quality within the distribution system for compliance with the Colorado Department of Public Health and Environment guidelines. These guidelines ensure the delivery of safe drinking water to each of our customers’ taps.

Further, more than 700 samples are collected annually from locations throughout our system for analysis of over 70 different contaminants, and to ensure adherence to disinfection standards. Results of sample analyses are then reported to our customers in our annual Consumer Confidence Report, which is included in our Annual Report and mailed to all Stockholders.

What Tests We Conduct

In addition to necessary process monitoring, all regulatory testing performed is in accordance with the Federal Safe Drinking Water Act and the Colorado Primary Drinking Water Regulations.

Consolidated’s monitoring plan lists requirements for testing by the Colorado Department of Public Health & Environment, such as turbidity and total coliform bacteria.

Our Maple Grove Water Treatment Facility has 23 on-line instruments that continuously monitor water quality. The calibration of our instruments occurs regularly and verified by our staff daily in our laboratory. Furthermore, performed daily are nine different water quality analyses to optimize the quality of finished water, and our team performs over 12,000 water quality tests annually.

In addition, our Staff monitors water quality within the distribution system for compliance with the Colorado Department of Public Health and Environment guidelines. These guidelines ensure the delivery of safe drinking water to each of our customers’ taps.

Further, more than 700 samples are collected annually from locations throughout our system for analysis of over 70 different contaminants, and to ensure adherence to disinfection standards. Results of sample analyses are reported to our customers in our annual Consumer Confidence Report, which is included in our Annual Report and mailed to all Stockholders.

Filling a test tube with water to test
Lab worker

How Often We Conduct Tests

Testing and reporting are required at various time intervals, and exact requirements are described in the Federal Safe Drinking Water Act and the Colorado Primary Drinking Water Regulations.

The monitoring plan for Consolidated lists what tests are required by the Colorado Department of Public Health and Environment, including both the frequency and locations.

Testing water

How Often We Publish Test Results

Test results are published according to the requirements of the Consumer Confidence Report (CCR) Rule set by the Federal Safe Drinking Water Act and the Colorado Primary Drinking water Regulations (Section 11.34).

Annual water quality test results for the past year is posted to this web page and updated annually.

Lab worker
Learn more about the Maple Grove Water Treatment Facility and process

Protocol for informing residents of dangerous levels of any hazardous substances/toxins.

Consolidated complies with all public notification requirements as regulated according to the Federal Safe Drinking Water Act and the Colorado Primary Drinking Water Regulations.

Additionally, please review Section 11.33 through 11.7 of the Colorado Primary Drinking Water Regulations for details as public notice requirements are divided into three tiers based on the following criteria of the situation or adverse health effects:

Tier 1

Significant potential for serious health effects with short-term exposure. Consumers will be notified no later than 24 hours after learning of the situation.

Tier 2

Potential to have serious health effects. Consumers will be notified no later than 30 days after learning of the situation.

Tier 3

Public notice for all other violations and situations not covered under Tier 1 and 2. Consumers will be given notice no later than 12 months after learning of the situation.

Further, Consolidated seeks Stockholder contact information via forms on our website, which enable us to notify Stockholders of water outages, construction projects, etc. If the water quality test indicates an emergency, Consolidated can utilize the Reverse 911 System to inform customers.