Marshall, Missouri’s Home
for Water Softeners, Water Filters,
& Water Delivery

Yes—Marshall’s tap water meets federal and state drinking water standards based on required monitoring. However, “meets standards” doesn’t mean contaminant-free. The report still shows regulated contaminants, disinfection byproducts, and naturally occurring minerals that can affect taste, odor, and how water behaves in your home. That’s why many homeowners add water treatment to reduce hard water scale, improve taste, and add another layer of confidence at the tap.

Marshall’s water comes from groundwater. The report lists the source as multiple wells: Well #1, 2, 3, 4, 5, 6, 7, 8, 9, and 10.

Yes. Based on the report’s optional monitoring, Marshall’s total hardness is 126 mg/L as calcium carbonate (CaCO₃), which is commonly considered moderately hard. Over time, moderately hard water can contribute to scale on fixtures, appliances, and water-using equipment.

Yes. The report includes monitoring results for total trihalomethanes (TTHMs) and haloacetic acids (HAA5), which are byproducts of drinking water disinfection. Even when levels stay within limits, some residents choose filtration to help reduce these compounds at the tap.

Yes. The regulated contaminants table lists nitrate-nitrite at 0.136 ppm (with an MCL of 10 ppm). Nitrate is often tied to runoff from fertilizer use and leaching from septic systems, along with natural sources.

Yes. The report lists fluoride at 0.27 ppm (with an MCL of 4 ppm). Fluoride can occur from natural deposits and is monitored as part of routine compliance testing.

Lead is included under Lead & Copper reporting. The report shows a 90th percentile lead value of 3.72 ppb with 0 sites over the action level (15 ppb). Even with compliant results, lead risk can vary by home because it’s often tied to plumbing materials and corrosion conditions.

Copper is also reported under Lead & Copper. The report lists a 90th percentile copper value of 0.0415 ppm with 0 sites over the action level (1.3 ppm). Like lead, copper levels can be influenced by household plumbing and corrosion.

Lithium appears under Unregulated Contaminant Monitoring Rule (UCMR) testing. The report lists “Lithium, Total” with a highest value of 13.8 ug/L (range shown 10.6–13.8 ug/L). Unregulated results are reported for informational monitoring and tracking.

PFAS results are not shown on the report pages provided here. If PFAS is a concern, a targeted water test is the clearest way to confirm what’s present at your tap, and many homeowners choose filtration options designed to reduce PFAS.

A lot of Marshall homeowners choose treatment even when the water meets standards. A water softener helps reduce scale tied to moderate hardness, while filtration can improve taste and help reduce compounds like disinfection byproducts. Plus, it adds an extra layer of security to your home’s tap water.

You can access the most recent Marshall Tap Water Quality Report here.