Adel is not on the Des Moines water system, and the nitrate headlines you have been reading were never about your tap. Here is what your water actually is, and what an under-sink system does about it.
Most of the Des Moines metro buys treated river water from one regional producer. Adel is one of the few towns in Dallas County that does not.
Adel's public water supply, PWSID 2503003, is owned and operated by the city and serves roughly 6,461 people according to the Iowa DNR. It buys no treated water from anyone. It is not a member of Central Iowa Water Works, the regional production authority the rest of the metro joined, and it is not connected to the Des Moines Water Works plants on the Raccoon and Des Moines rivers. The city says so itself: "The City of Adel maintains its own water and sanitary sewer treatment plants, making it possible to remain competitive in utility rates."
The Iowa DNR classifies Adel's source water type as Ground Water, 100% of it. The wells sit in the sand and gravel of the North Raccoon alluvial aquifer at depths of roughly 40 to 59 feet. The newest, Adel #8, was drilled in November 2025. This is shallow groundwater in farm country, not a deep protected formation.
Adel's treatment plant came fully online in March 2021, with the public ribbon cutting on October 14, 2021. It uses pressure filtration, biological manganese removal, and reverse osmosis membrane softening. Your city genuinely does run RO at municipal scale before the water ever leaves the plant, and that is worth knowing before anyone tries to sell you a scare.
One caveat the city puts in its own report, word for word: the DNR's Source Water Assessment rates the alluvial aquifer "highly susceptible to contamination", because the aquifer and the soil above it provide little natural filtration from leaking tanks, spills and fertilizer runoff. Shallow groundwater in Dallas County is in conversation with whatever sits on the ground above it. That is not a prediction of trouble, it is the reason Adel built the plant it built.
Adel publishes its own consumer confidence report instead of appearing in the regional Des Moines report. Every number below comes from Adel's 2024 report, published March 6, 2025. The city's site also lists a newer report, but that link did not load when we checked in July 2026, so we are using the most recent one that does.
ppm nitrate in Adel's water against a federal limit of 10. That is a fraction of what the river-fed metro plants were reporting.
Adel 2025 Water Quality Report ↗lead at the 90th percentile in Adel. Not detected. Copper was the one metal that did show up, at 0.216 ppm.
Adel 2025 Water Quality Report ↗gallons of river water Adel buys, and zero Stage III lawn watering bans it was named in. Adel is not on that network.
Iowa DNR source water record ↗| Adel water system, 2025 | Result | Range | Limit |
|---|---|---|---|
| Nitrate as N | 0.900 ppm | single reported value | 10 ppm |
| Total trihalomethanes (TTHM) | 25 ppb | 25 to 25 | 80 ppb |
| Haloacetic acids (HAA5) | 14 ppb | 14 to 14 | 60 ppb |
| Chlorine, running annual average | 0.8 ppm | 0.35 to 1.1 | 4.0 ppm |
| Lead, 90th percentile | Not detected | ND | 15 ppb action level |
| Copper, 90th percentile | 0.216 ppm | 0.0141 to 0.291 | 1.3 ppm action level |
| Fluoride, running annual average | 0.34 ppm | 0.200 to 0.730 | 4 ppm |
| Barium | 0.117 ppm | single reported value | 2 ppm |
| Selenium | 1.10 ppb | single reported value | 50 ppb |
| Sodium | 18.6 ppm | single reported value | no federal limit |
Adel's water met every federal standard in that report. No violations, no exceedances, and nothing sitting uncomfortably close to a limit. If you came here expecting us to tell you Adel tap water is dangerous, we are not going to, because the city's own numbers do not say that. Four things are still worth understanding.
One, the nitrate result is genuinely low. 0.90 ppm against a 10 ppm limit is about as clean as nitrate gets in central Iowa. For scale, the Des Moines Water Works plants that supply Urbandale, Clive, Waukee and West Des Moines reported peak treated nitrate of 9.17 and 9.04 mg/L in 2025. Adel is not on those plants and never has been. Anyone selling you an RO system in Adel on the strength of the Des Moines nitrate crisis is selling you somebody else's problem.
Two, copper is the number that is doing something. Lead came back not detected, which is a clean result. Copper came back at 0.216 ppm at the 90th percentile with the worst sampled home at 0.291, well under the 1.3 ppm action level but clearly present. Copper and lead both behave the same way: they do not ride in from the treatment plant, they dissolve out of the pipe, solder and fixtures between the water main and your faucet. That is a house-by-house story, and in a town where thousands of homes have gone up in the last fifteen years, most of that plumbing is copper.
Three, there are gaps in what gets published. Adel's plant description says it performs biological manganese removal, but no measured manganese value appears anywhere in the report's contaminant table. We also could not find an Adel-specific PFAS result, which is common for a system this size. An absent number is not a clean number. It just means nobody handed you one.
Four, disinfection byproducts are real but modest here. Trihalomethanes at 25 ppb and haloacetic acids at 14 ppb are both comfortably under their limits. They form when chlorine meets organic matter, and groundwater systems like Adel's generally carry less of that organic load than the river-fed side of the metro. The chlorine residual itself averaged 0.8 ppm, ranging up to 1.15. That is the taste most people are actually reacting to when they say the water is "off."
Two summers of metro nitrate headlines, and Adel was on the outside of all of them. That matters more than any sales pitch we could make.
Central Iowa Water Works issued the first Stage III mandatory lawn watering ban in the region's history in June 2025, then did it again on June 8, 2026, saying the system was "operating at the limits of its available treatment resources." Nitrate in the Des Moines and Raccoon rivers ran past 15 mg/L in June 2025 against a 10 mg/L federal limit.
CIWW Stage III, Jun 2026 ↗CIWW listed its member communities in those releases: Ankeny, Clive, Grimes, Johnston, Norwalk, Polk City, Urbandale, Waukee, West Des Moines, Des Moines Water Works, Warren and Xenia. Adel is on none of those lists because Adel is not a member and does not draw from that supply. If a salesperson quotes you the river nitrate numbers at your Adel kitchen table, they have not looked up which water system you are on.
CIWW founding members ↗Iowa has the second-highest cancer incidence rate in the country, and researchers have connected long-term nitrate exposure in drinking water to several cancers. That is the reason nitrate dominates the conversation on the Des Moines side of the metro. In Adel it is honestly the least of your concerns right now, and we would rather say that plainly than manufacture a scare. What is left is the ordinary stuff, and it is all downstream of the plant: chlorine you can taste, disinfection byproducts, copper and any lead coming off your own plumbing, and the fact that the aquifer under you is rated highly susceptible and is being asked to serve a town that has roughly doubled in fifteen years. Those are tap-level questions, which is exactly where a point-of-use system lives. Investigate Midwest, Mar 2026 ↗
Adel counted 3,682 residents in 2010, 6,153 at the 2020 Census, and the Census Bureau's 2025 estimate puts the city at 7,098, a 15.2% jump in five years. City land area went from 3.27 square miles in 2010 to 5.34 in 2020. That is a lot of brand new kitchens, and a lot of new demand on a system built around shallow wells.
Median home value in Adel sits at $327,900 with a median household income of $95,250, both above the Dallas County norm for a town this size. Practically, that means most Adel kitchens we work in are recent construction with granite or quartz tops. We drill natural stone in house, so a stone counter is not a reason to delay and not a reason to pay a second trade.
About 65.2% of Adel's 2,372 households own their home, and households average 2.67 people with 30.4% of residents under 18. That skews young for the metro. Kids drink more water per pound of body weight than adults do, which is the single most common reason an Adel parent calls us in the first place.
Adel's plant already softens with RO membranes before the water leaves the building. Yours treats what is actually in the pipe when it reaches your glass.
We install the iSpring RCC7AK 7-stage system under your kitchen sink with its own dedicated faucet. Installation takes one to two hours. Pricing is $699, $849 or $1,099 fully installed depending on configuration, with no separate plumber charge. See full pricing for what each tier includes.
Prime Flow Filtration does point-of-use drinking water only. We do not sell whole-house systems, softeners or well treatment. Given how good Adel's published numbers are, there is a real chance we test your tap and tell you that you are fine. We would rather say that than sell you something you do not need.
Free in-home water test, no obligation. We test your actual kitchen tap, show you the numbers, and tell you honestly whether a system is worth it.