If you notice fine particles or film in your water at home
Many residential users in Salt Lake County may see small particles or films in their tap water and wonder if microplastics are the cause. While microplastics cannot be confirmed without specific testing of your home’s water, understanding the origin of these particles and how they may enter water systems can help decide next steps.
If you want to know how microplastics reach your home’s water from the source
The Granger-Hunter Improvement District, serving over 120,000 people in Salt Lake County, relies primarily on surface water as its source. Surface waters are naturally more exposed to environmental contaminants due to runoff, human activity, and urbanization, making them a typical pathway where microplastics might accumulate. However, federal datasets, including EPA records for this district, currently have no monitoring data for microplastics, so their presence and concentration in this public water supply are not documented. To determine microplastics in your home tap water, independent testing targeting microplastic particle counts and size distribution is necessary.
If you seek a manageable schedule for addressing microplastics with filtration technology
The Pentair Microplastics Filter ships ready to configure in household systems. Its maintenance involves routine replacement of filter cartridges typically every few months, based on household water use and water quality, to sustain effective removal. Regular cartridge changes ensure that the filter continues to intercept microplastics and other microscopic particulates without compromising flow or water clarity.
If you want to interpret your municipal water testing data regarding microplastics
Government records for the Granger-Hunter Improvement District report zero health-based violations and lead levels at 0.0019 mg/L in home plumbing samples, indicating compliance with federal standards unrelated to microplastics. Because no microplastic measurements exist for this system, the data cannot confirm or exclude microplastics presence. Homeowners concerned about microplastics should consider detailed private testing and then evaluate whether additional treatment like the Pentair Microplastics Filter fits their water quality goals.
If you wonder how the Pentair system removes microplastics from your water
The Pentair Microplastics Filter uses advanced filtration media designed to trap particles well below visible size ranges, targeting microplastic debris and minimizing their passage into household water. By capturing these tiny plastic fragments, the system helps preserve water clarity and may reduce potential accumulation in plumbing fixtures over time, supporting cleaner water for daily use.
If you consider your home plumbing’s effect separate from the source water
The plumbing materials and age in your residence can affect water quality independently of municipal supply. Older pipes or certain materials might shed small particulates or interact with water chemistry, which could be mistaken for microplastics. Testing water directly from the source tap and comparing it to water after passage through household plumbing can clarify whether treatment should focus on the source water or on plumbing-related contaminants.
The Granger-Hunter Improvement District’s public water system record encompasses all municipal supply delivered to Salt Lake County households served by this district. It provides authoritative data on source type and compliance status but does not include microplastics monitoring. For detailed source documents, visit EPA’s public water system database.
Where this information comes from
Source: EPA SDWIS public water system record. Sampled 2025-12-31. These figures describe the public water system's record, not the plumbing inside any individual building.
On record: EPA SDWIS record for GRANGER-HUNTER IMPROVEMENT DISTRICT (UTAH18007), surface water supply, serving 121083 people: 0 health-based violations of 3 total; lead 90th percentile 0.0019 mg/L

