Water Quality Report
Overview
This 2025 Water Quality Report, also known as a Consumer Confidence Report, provides information about the quality of drinking water Herriman City delivered during the 2025 calendar year. Herriman City is committed to providing a safe and dependable drinking water supply. This report details where your water comes from, how it’s treated, what it contains, and how it compares to state and federal standards.
If you have any questions about this report or your water utility, contact the Herriman City Water Department at 801-446-5323 or visit the Water Department's webpage.
Where Herriman’s Water Comes From
Herriman City provides water from both ground and surface sources. These include:
- Five wells
- One spring
- Jordan Valley Water Conservancy District
- Bluffdale City
Additional Water Supplier Reports
Herriman City receives some of its drinking water from Jordan Valley Water Conservancy District and Bluffdale City. Their current water quality reports are available below:
Reports for Unincorporated Areas Served by Herriman City
Lead and Copper Information
Corrosion of household plumbing, fittings, and fixtures may cause metals such as lead and copper to enter drinking water. Herriman City conducts lead and copper tap sampling every three years at selected locations to monitor corrosion levels.
Service Line Inventory
Herriman City has completed an initial lead service line inventory, documenting materials used to connect water mains to homes and buildings. The inventory is publicly available at this interactive map.
Drinking Water Source Protection
Herriman City maintains a Drinking Water Source Protection Plan, which identifies:
- Source protection zones
- Potential contamination sources, such as septic systems, roads, and industrial areas
- Management strategies to reduce contamination risks
Herriman's water sources are rated as having a medium level of susceptibility. To view the plan or ask questions, please contact the Water Department.
Cross Connections and Water Safety
A cross connection is an unintended link between drinking water and potential contaminants. Common examples include:
- Garden hoses lying in puddles
- Lawn sprinkler systems after applying fertilizers or pesticides
- Improper connections to a secondary, untreated water line
Improper connections can compromise water quality and pose health risks. Do not install or allow unapproved plumbing connections at home. Contact the City for information on how to protect the water supply.
2025 Water Quality Test Results
Water Testing and Monitoring
Herriman City regularly tests its drinking water as required by federal and Utah state law. These tests measure a range of potential contaminants. While all drinking water sources may contain naturally occurring substances, they are generally not harmful at low levels. Removing 100% of contaminants is often unnecessary and cost-prohibitive.
Test Results
The following table shows the results of 2025 monitoring, including key indicators from prior years as required. All contaminants listed were within regulatory limits.
| Contaminant | Violation (Y/N) | Level Detected (Range Low-to-High or ND) |
Unit | MCLG | MCL | Date Sampled | Likely Source of Contamination |
|---|---|---|---|---|---|---|---|
| Microbiological Contaminants | |||||||
| Total Coliform Bacteria | N | ND | N/A | 0 | Presence of coliform bacteria in 5% of monthly samples | 2025 | Naturally present in the environment |
| Fecal coliform and E. coli | N | ND | N/A | 0 | If a routine sample and repeat sample are total coliform positive, and one is also fecal coliform or E. coli positive | 2025 | Human and animal fecal waste |
| Turbidity for Ground Water | N | 0.13 | NTU | N/A | 5 | 2025 | Soil runoff |
| Turbidity for Surface Water | N | 0.26 | NTU | N/A | 0.5 in at least 95% of the samples and must never exceed 5.0 | 2021 | Soil runoff (highest single measurement & the lowest monthly percentage of samples meeting the turbidity limits) |
| Inorganic Contaminants | |||||||
| Arsenic | N | ND-4 | ppb | 0 | 10 | 2025 | Erosion of natural deposits; runoff from orchards; runoff from glass and electronics production wastes |
| Barium | N | 7-214 | ppb | 0 | 2000 | 2025 | Discharge of drilling wastes; discharge from metal refineries; erosion of natural deposits |
| Copper a. (90% results) b. (# of sites that exceed the AL) |
N | a. 0.331 b. 0 |
ppm | 0 | AL=1.3 | 2023 | Corrosion of household plumbing systems; erosion of natural deposits |
| Lead a. (90% results) b. (# of sites that exceed the AL) |
N | a. 4 b. 0 |
ppb | 0 | AL=15 | 2023 | Corrosion of household plumbing systems; erosion of natural deposits |
| Fluoride | N | 137-294 | ppb | 0 | 4000 | 2025 | Erosion of natural deposits; water additive which promotes strong teeth; discharge from fertilizer and aluminum factories |
| Nickel | N | ND-7 | ppb | 0 | 100 | 2025 | Erosion of natural deposits; discharge from refineries and factories; runoff from landfills; runoff from cropland |
| Nitrate (as Nitrogen) | N | 2-4 | ppm | 0 | 10 | 2025 | Runoff from fertilizer use; leaching from septic tanks, sewage; erosion of natural deposits |
| Selenium | N | ND-8 | ppb | 0 | 50 | 2025 | Discharge from petroleum and metal refineries; erosion of natural deposits; discharge from mines |
| Sodium | N | 42-100 | ppm | None set by EPA | None set by EPA | 2025 | Erosion of natural deposits; discharge from refineries and factories; runoff from landfills |
| Sulfate | N | 21-349 | ppm | 0 | 1000 | 2025 | Erosion of natural deposits; discharge from refineries and factories; runoff from landfills; runoff from cropland |
| TDS (Total Dissolved Solids) | N | ND-1632 | ppm | 0 | 2000 | 2025 | Erosion of natural deposits |
| Disinfection By-products | |||||||
| TTHM (Total Trihalomethanes) | N | 24-68 | ppb | 0 | 80 | 2025 | By-product of drinking water disinfection |
| Haloacetic Acids | N | 10-32 | ppb | 0 | 60 | 2025 | By-product of drinking water disinfection |
| Radioactive Contaminants | |||||||
| Alpha emitters | N | 1-9 | pCi/L | 0 | 15 | 2025 | Erosion of natural deposits |
| Combined Radium | N | 1-4 | pCi/L | 0 | 5 | 2025 | Erosion of natural deposits |
| Radium 226 | N | 0.05-0.26 | pCi/L | 0 | 5 | 2025 | Erosion of natural deposits |
| Radium 228 | N | 0.26-1 | pCi/L | 0 | 5 | 2025 | Erosion of natural deposits |
| Uranium | N | 5-7.2 | ppb | 0 | 30 | 2025 | Erosion of natural deposits |
| Synthetic Organic Contaminants, Pesticides and Herbicides | |||||||
| Ethylbenzene | N | ND-22 | ppb | 0 | 700 | 2025 | Discharge from petroleum factories |
| Xylenes | N | 115 | ppb | 0 | 10000 | 2025 | Discharge from petroleum factories; discharge from chemical factories |
Understanding the Terms
- Non-Detects (ND) - laboratory analysis indicates that the constituent is not present.
- ND/Low - High - For water systems that have multiple sources of water, the Utah Division of Drinking Water has given water systems the option of listing the test results of the constituents in one table, instead of multiple tables. To accomplish this, the lowest and highest values detected in the multiple sources are recorded in the same space in the report table.
- Parts per million (ppm) or Milligrams per liter (mg/L) - one part per million corresponds to one minute in two years or a single penny in $10,000.
- Parts per billion (ppb) or Micrograms per liter (µg/L) - one part per billion corresponds to one minute in 2,000 years, or a single penny in $10,000,000.
- Parts per trillion (ppt) or Nanograms per liter (ng/L) - one part per trillion corresponds to one minute in 2,000,000 years, or a single penny in $10,000,000,000.
- Parts per quadrillion (ppq) or Picograms per liter (pg/L) - one part per quadrillion corresponds to one minute in 2,000,000,000 years, or one penny in $10,000,000,000,000.
- Picocuries per liter (pCi/L) - a measure of the radioactivity in water.
- Millirems per year (mrem/yr) - measure of radiation absorbed by the body.
- Million fibers per liter (MFL) - measure of asbestos fibers longer than 10 micrometers.
- Nephelometric Turbidity Unit (NTU) - measure of water clarity; turbidity above 5 NTU is just noticeable to the average person.
- Action Level (AL) - the concentration of a contaminant which, if exceeded, triggers treatment or other requirements that a water system must follow.
- Treatment Technique (TT) - a required process intended to reduce the level of a contaminant in drinking water.
- Maximum Contaminant Level (MCL) - the highest level of a contaminant allowed in drinking water. MCLs are set as close to MCLGs as feasible using the best available treatment technology.
- Maximum Contaminant Level Goal (MCLG) - the level of a contaminant in drinking water below which there is no known or expected risk to health; allows for a margin of safety.
- Maximum Residual Disinfectant Level (MRDL) - the highest level of a disinfectant allowed in drinking water. There is convincing evidence that the addition of a disinfectant is necessary for the control of microbial contaminants.
- Maximum Residual Disinfectant Level Goal (MRDLG) - the level of a drinking water disinfectant below which there is no known or expected risk to health. MRDLGs do not reflect the benefits of disinfectants used to control microbial contaminants.
- Date - because of required sampling time frames (e.g., yearly, every 3, 4, or 6 years), sampling dates may appear outdated.
- Waivers (W) - some water systems receive waivers exempting them from sampling certain chemicals when those chemicals are not used or stored near drinking-water sources; waivers tie into Drinking Water Source Protection Plans.
Why Are There Contaminants in My Drinking Water?
Drinking water, including bottled water, may reasonably be expected to contain at least small amounts of some contaminants. The presence of contaminants does not necessarily mean the water poses a health risk. More information about contaminants and possible health effects is available from the EPA’s Safe Drinking Water Hotline at 800-426-4791.
Drinking water comes from sources such as rivers, lakes, streams, reservoirs, springs, and wells. As water moves over land or through the ground, it can dissolve naturally occurring minerals and, in some cases, radioactive material. It can also pick up substances from animals or human activity.
Common contaminant categories include:
- Microbial contaminants – viruses or bacteria from sewage treatment plants, septic systems, livestock operations, and wildlife.
- Inorganic contaminants – salts and metals that occur naturally or enter water through urban stormwater runoff, industrial discharge, oil and gas production, mining, or farming.
- Pesticides and herbicides – chemicals used in agriculture, landscaping, and residential yards that can wash into streams or soak into groundwater.
- Organic chemical contaminants – synthetic and volatile compounds generated by industrial processes, petroleum production, gas stations, stormwater runoff, and septic systems.
- Radioactive contaminants – elements released from natural deposits, mining activities, or oil and gas production.
To help ensure tap water is safe to drink, the EPA limits the amount of certain contaminants in water provided by public water systems. The Food and Drug Administration sets limits for contaminants in bottled water, which must provide the same protection for public health.
Lead Exposure Risks and Prevention
Lead can cause serious health issues, especially for pregnant women and young children. While Herriman City provides safe drinking water, lead typically comes from plumbing materials inside buildings.
What you can do:
- Run tap water for 30 seconds to 2 minutes if the water has been sitting for several hours
- Use a filter to reduce lead. The City recommends a filter certified by the American National Standards Institute
- Inspect and remove lead components from home plumbing
If you're concerned, you may wish to test your water. Call 801-446-5323 or visit www.epa.gov/safewater/lead for more information.
Vulnerable Populations
Certain individuals may be more sensitive to contaminants in drinking water. These include:
- People undergoing chemotherapy
- Individuals with organ transplants
- People with HIV/AIDS or other immune disorders
- The elderly and infants
These individuals should seek guidance from health care providers. Additional guidelines and information are available from the Safe Drinking Water Hotline at 800-426-4791.
Protecting Our Shared Water Resources
Herriman City works around the clock to provide clean, safe drinking water to every tap. Residents are encouraged to help protect our water sources, which are essential to the health and future of our community.