We're pleased to present to you this year's
Annual Drinking Water Quality Report.

This report is designed to inform you about the quality water and services we deliver to you every day. Our constant goal is to provide you with a dependable supply of drinking water. We want you to understand the efforts we make to continually improve the water treatment process and protect our water resources. We are committed to ensuring the quality of your water. Our primary water source is the Laurel Creek Reservoir. In addition to that source, we are permitted to draw from four groundwater sources, wells, throughout the service area.

A source water assessment report is available at our office that provides more detailed information such as potential sources of contamination. A summary of our water system’s susceptibility to potential sources of contamination can be viewed below.

Annual Water Line Flushing

The Importance of Flushing Water Lines

Residents who notice Mifflin County Municipal Authority (MCMA) crews working at fire hydrants and see water running into the street may think that MCMA is ignoring its own philosophy on conserving water. The process of periodically "flushing" fire hydrants, however, is an important preventative maintenance activity. Although it may appear to waste water, this process is part of a routine maintenance program necessary to maintain the integrity of the water system and to continue to deliver the highest quality water possible to our customers.

Flushing the water system on a routine basis removes sediment from water distribution lines and keeps the entire distribution system refreshed. MCMA maintains nearly 300 miles of domestic water lines throughout its service area, which covers the majority of Mifflin County.

Each water main and every fire hydrant is flushed, at a minimum, on an annual basis.

As a result of the flushing procedure, residents in the immediate vicinity of the work area may experience temporary discoloration of their water. This discoloration consists primarily of harmless silt and precipitates and does not affect the safety of the water.   If you experience discoloration in your water after crews have been flushing in your neighborhood, clear the pipes in your own home by running all water faucets for a minute or two.

This same philosophy of water line preventive maintenance is one that you should use in your own home. Your home's water heater should be drained and flushed at least once a year to keep it working efficiently and to protect the quality of water inside your home. Also, if you go out of town and there is no water use in your home for a week or more, when you return it's always a good idea to run all your faucets for a minute or so before using the water. This ensures that you don't use any stagnant water that may have developed in your home's pipes while you were away.

What can customers do?

Try to refrain from using water during flushing, as you will introduce particles into your piping.

By-pass a water softener prior to the start of flushing.

After flushing is complete, open an outside faucet closest to the point of entry to your home to help clear any discolored water you may have.

Put the water softener back on-line and manually start the regeneration cycle.

Clean your faucet aerators twice annually. Aerators are the screens that screw into the end of the faucet.

Water Quality Monitoring Updates

MCMA continuously monitors emerging issues and regulations to understand the impact on our treatment processes and daily work to protect public health and the environment. MCMA will take any necessary actions to continue to meet or exceed federal and state safety standards. The rigorous sampling protocol in place and the ability to adapt to changes in regulations, as they are determined, ensure compliance with prescribed regulations. 

EPA Releases PFAS (Per- and polyfluoroalkyl substances) Health Advisories (06/17/22)

What Are Drinking Water Health Advisories?
Drinking water health advisories provide information on contaminants that can cause human health effects and are known or anticipated to occur in drinking water. EPA's health advisories are non-enforceable and non-regulatory and provide technical information to drinking water system operators, as well as federal, state, Tribal, and local officials on health effects, analytical methodologies, and treatment technologies associated with
drinking water contamination.

Click here to view the EPA Fact Sheet for Public Water Systems

Additional information can be found at the following links:

Safe Drinking Water Act - https://www.epa.gov/sdwa

Clean Water Act - https://www.epa.gov/laws-regulations/summary-clean-water-act


How Hard is My Water?

The simple definition of water hardness is the amount of dissolved calcium and magnesium in the water.

Hardness is caused by compounds of calcium and magnesium, and by a variety of other metals.

MCMA Water Total Hardness = 23.9 mg/L or 1.4 Grains Per Gallon as Calcium Carbonate

Average Calcium = 7.7 mg/L

Average Magnesium = 1.2 mg/L

The water drop reflects the MCMA calcium carbonate level in the "soft" range.

Source: USGS




The Pennsylvania Department of Environmental Protection has selected the Laurel Creek Filtration Plant to receive a prestigious Optimization Program (AWOP) Award.

AWOP is a national filter plant optimization effort among 22 states, the Environmental Protection Agency (EPA), the Association of State Drinking Water Administrators (ASDWA) and MCMA. For the 15th consecutive year in Pennsylvania, AWOP will recognize outstanding efforts toward optimizing filter plant turbidity performance with a prestigious AWOP Award. The top performing filter plants that submitted their WebOAS turbidity data will receive the AWOP award this year.

The Laurel Creek Filtration Plant, which provides service to the residents of Mifflin County, will be one of the filter plants receiving this award in 2023 at the annual Water Works Operators Association of Pennsylvania Conference held in State College, PA.