Liberty Lake Water Quality
Liberty Lake's Water District and Sewer System
The Spokane Valley-Rathdrum Prairie (SVRP) Aquifer is Liberty Lake’s drinking water source. The land that forms the lake’s watershed is located over the aquifer, allowing water to drain into the lake.
During the 1960s, Liberty Lake, Washington faced significant environmental challenges, including a surge in blue-green algae caused by unsewered homes, leaking sewer pipes, and stormwater runoff.
In response, the Liberty Lake Water District (LLSWD) was formed in 1973. The district is dedicated to safeguarding the water quality of Lake Liberty, the aquifer, and the Spokane River. Doing so instills water conservation, backflow prevention, and health protection for the general public. It also maintains the watershed and provides Liberty Lake residents with reliable sewer and water utility services.
Water Quality Testing and Contaminant Analysis
The Liberty Lake Sewer and Water District (LLSWD) is committed to transparency and safety, providing annual Consumer Confidence Reports to keep you informed about the quality of your drinking water. According to their 2023 Annual Drinking Water Quality Report, we share the following information:
The highest levels of arsenic and nitrates found in pump stations within the LLSWD service area boundaries are below the legal limit.
Radioactive compounds found in LLSWD pump stations are also within legal limits.
The presence of lead and copper is also within legal limits.
However, the Environmental Working Group (EWG) states that the legal limits for contaminants need to be updated. Five contaminants have been detected to exceed their guidelines.
| Contaminants | Contaminant Level | MCL | EWG Standards |
|---|---|---|---|
| Arsenic | 1.85 ppb | 10 ppb | 0.004 ppb |
| Nitrate | 0.842 ppm | 10 ppm | 0.14 ppm |
| Nitrate and Nitrite | 0.827 ppm | 10 ppm | 0.14 ppm |
| Radium, combined (-226 & -228) | 0.32 pCi/L | 5 pCi/L | 0.05 pCi/L |
| Total trihalomethanes (TTHMs) | 1.21 ppb | 80 ppb | 0.15 ppb |
Solutions for Improving Liberty Lake Water Quality
| Contaminants Above EWG Health Guidelines | Granular Activated Carbon | Reverse Osmosis | Ion Exchange Resins |
|---|---|---|---|
| Arsenic | Yes | Yes | |
| Nitrate | Yes | Yes | |
| Nitrate and nitrite | Yes | Yes | |
| Radium, combined (-226 & -228) | Yes | Yes | |
| Total trihalomethanes (TTHMs) | Yes | Yes | |
| PFAS | Yes | Yes |
Professional Water Quality Testing Services
Water quality can vary based on numerous factors, such as the location of pump stations and nearby production wastes. To ensure your water is safe, we offer a complimentary water analysis to assess the levels of contaminants in your supply.
Our H2O Solution experts are here to help you find the best filtration systems tailored to your needs, including state-of-the-art reverse osmosis filters from EcoWater. Trust us to provide the expertise and solutions necessary to ensure your water is as pure and safe as possible.
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