Legal limits do not equal optimal health. All contaminants on this page are within EPA legal limits. EWG exceedances reflect EWG's more conservative health thresholds — not regulatory violations. Springfield's water is legally safe to drink. This guide explains what's in it and what removes it.
Springfield is the only Middle Tennessee city with an atrazine concern
Atrazine is an agricultural herbicide used on corn and sorghum fields — one of the most widely applied pesticides in America. It's detected in the Red River watershed because Robertson County is one of the most agricultural counties in Middle Tennessee, with significant row crop farming upstream of Springfield's water intake. Most Middle Tennessee cities on the Cumberland or other less-agricultural rivers don't show atrazine at this level. Springfield Water System detected atrazine at 0.260 ppb — 2.6x EWG's 0.1 ppb health guideline. It is below the EPA legal limit of 3 ppb. Atrazine is a hormone disruptor that can harm fetal development and the reproductive system. Activated carbon and reverse osmosis both remove atrazine effectively.
2025 Official CCR Data — Pleasant View Utility District
Pleasant View Utility District's 2025 Consumer Confidence Report provides the most current verified data for a Robertson County-area utility. Source: Sycamore Creek at Pleasant View Water Treatment Plant.
TTHMs: 46.7 ppb highest LRAA (range 15.1–49.8 quarterly 2025) — within EPA 80 ppb limit. HAA5: 30.4 ppb highest LRAA (range 13.8–25.6) — within EPA 60 ppb limit. Chlorine: 1.77 ppm highest RAA (0.90–2.3 range). Nitrate: 0.323 ppm (fertilizer runoff source). Lead: BDL — 30 of 30 samples below 1 ppb. Copper: 0.057 ppm 90th percentile. Sodium: 6.48 ppm. 2,4-D herbicide: below detection limit 2025. No violations in 2025. Contact Stephen Ayres at 615-746-5315. Board meets 1st Tuesday monthly at 6589 Hwy 41-A, 3:00pm.
WHUD's 2025 Water Quality Report confirms the utility "again met or exceeded all state and federal water quality regulations." WHUD is Tennessee's largest water and wastewater utility, serving 100,000+ residents in Robertson, Sumner, and northern Davidson counties from Old Hickory Lake (Hendersonville treatment facility). Source: Old Hickory Lake — a different watershed from the Red River utilities. Contact Brian Wade at 615-672-4110 ext. 332.
Your Five Robertson County Utilities at a Glance
Springfield and Robertson County are served by five separate water systems. Springfield Water Department is the hub for the Red River watershed utilities — it treats the Red River water that Greenbrier purchases. WHUD and PVUD draw from completely different watersheds. Check your water bill to confirm your utility.
West Robertson Water Authority
Two separate watershed systems — one county
Robertson County has a split water landscape. Springfield Water System and Greenbrier share Red River source water — treated by Springfield's plant, with the same atrazine and DBP profile. West Robertson Water Authority also uses surface water in Adams, TN. WHUD (White House Utility District) draws from Old Hickory Lake — the Cumberland River watershed — giving it a completely different chemistry. Pleasant View UD draws from Sycamore Creek. Your contaminant profile depends entirely on which watershed feeds your tap.
Contaminants Exceeding EWG Health Guidelines
All contaminants below are within EPA legal limits. Springfield and Greenbrier share the same Red River-sourced water profile. West Robertson (Adams, TN) has a distinct surface water profile. WHUD and PVUD data are from official CCRs.
HAA5/9 above EWG
HAA5/9 above EWG
HAA5: 30.4 ppb highest LRAA
in progress 2023–2025
All Five Utilities — Side-by-Side Comparison
| Contaminant | EWG Guideline | Springfield WS TN0000666 |
Greenbrier W&S TN0000271 |
West Robertson TN0000001 |
PVUD 2025 CCR |
WHUD 2025 Report |
|---|---|---|---|---|---|---|
| Atrazine (herbicide) | 0.1 ppb / 3 ppb | 0.260 ppb · 2.6x | 0.260 ppb · 2.6x | Not reported | 2,4-D: BDL 2025 | Old Hickory L. source |
| Bromodichloromethane | 0.06 ppb | 5.81 ppb · 97x | Same — Springfield source | 7.31 ppb · 122x | Part of TTHM total | Old Hickory L. profile |
| TTHMs | 0.15 ppb / 80 ppb | Above EWG | Above EWG | Above EWG | 46.7 ppb LRAA (2025) | Met all standards 2025 |
| HAA5 | 0.1 ppb / 60 ppb | Above EWG | Above EWG | Above EWG | 30.4 ppb LRAA (2025) | Met all standards 2025 |
| PFOA / PFAS | 0.09 ppt | Above EWG | Above EWG | Not reported | UCMR 5 monitoring | Not specified |
| Nitrate | 0.14 ppm | Above EWG | Above EWG | Above EWG | 0.323 ppm · 2.3x (2025) | Old Hickory L. profile |
| Lead (most recent) | 0 | EWG data | EWG data | EWG data | BDL — 0/30 exceeded AL | Compliant 2025 |
| Source water | — | Red River | Red River (via Springfield) | Surface water (Adams) | Sycamore Creek | Old Hickory Lake |
| Above EWG / Total | — | 12 of 18 | 12 of 18 | 9 of 15 | All compliant 2025 | All compliant 2025 |
Greenbrier 2023 Stage 2 DBP violation — context: The Greenbrier Water Department's 2023 Annual Water Quality Report notes a procedural violation of the Stage 2 Disinfection Byproducts rule — samples scheduled for the week of January 11, 2023 were not collected until January 18, 2023 (a scheduling delay, not a water quality exceedance). The water was not unsafe; the monitoring schedule was not followed. This does not indicate higher contaminant levels. Contact Jason Harrington at 615-829-3304 for questions.
What Hard Water Is Doing to Your Home Every Day
Robertson County water from limestone-influenced Red River and Sycamore Creek sources creates daily effects most residents notice but rarely connect to their water supply. These aren't cleaning product problems — they're calcium and magnesium mineral effects.
Calcium and magnesium ions disrupt the skin's moisture barrier after showering, causing dryness and irritation. Research links water hardness directly to eczema severity in children. Hard water coats the hair shaft with mineral deposits — hair feels rough, dull, and color-treated hair fades faster. A softener or KDF showerhead filter addresses this at the source.
White spots and cloudy film on glasses are calcium carbonate — the same mineral that forms limestone. When Robertson County hard water evaporates in your dishwasher, minerals bond to surfaces. Dishwasher detergent requires 50–75% more product to lather effectively. A softener eliminates spotting entirely and extends dishwasher life.
Hard water mineral deposits build up in fabric fibers — clothes feel stiff, whites yellow, colors fade faster. Clothes washed in hard water wear out up to 15% faster. Towels lose absorbency. A softener restores detergent effectiveness and extends garment life significantly.
Scale buildup on water heater elements reduces efficiency by 8% per GPG (U.S. Dept. of Energy). At 7–9 GPG typical for Robertson County Red River water, scale accumulates significantly in hot water systems. Dishwashers, washing machines, and coffee makers degrade faster. Tankless water heater heat exchangers are particularly vulnerable.
Red River Limestone Hard Water in Robertson County
The Red River flows through Robertson County's limestone-rich agricultural landscape, picking up calcium and magnesium that treatment does not remove. Springfield and Greenbrier city water from the Red River is typically moderately hard to hard. WHUD customers drawing from Old Hickory Lake (Cumberland River watershed) may see different hardness. Private wells in Robertson County limestone aquifers are often significantly harder.
Springfield Hard Water Impact Calculator
Enter your water's hardness reading to see classification, appliance lifespan impact, and recommended softener size. Default set to Springfield's typical Red River average.
Red River Limestone Hard Water Impact Calculator
Defaults set to Springfield's typical city water level. Adjust to match your specific test results.
Soft 3.5 GPG
Slightly Hard 7 GPG
Hard 10.5 GPG
Extremely Hard
Eco120°F
Standard130°F140°F
Tankless
PPM / mg/L (CCR units)
Grains per gallon
0–3 Mod. Hard
3–5 Hard
7–10 Extremely Hard
10.5+
Robertson County Area Water Guide
Which utility serves your address depends on your location in Robertson County. Here's what you need to know based on where you live.
Find Your Area
Chlorine Residual in Springfield Water
Springfield Water System and Robertson County utilities use chlorine as their primary disinfectant. While chlorine effectively kills bacteria and viruses, the residual that reaches your tap is worth knowing — especially because it directly drives the formation of the disinfection byproducts (TTHMs, HAAs, chloroform, bromodichloromethane) that are Clarksville’s biggest water quality concerns.
Springfield tap water runs at pool-level chlorine concentration
Springfield Water System’s chlorine residual is estimated at approximately 1.50–1.65 ppm — within the pool range and consistent with Robertson County source water utilities. For comparison, the EPA-recommended range for a swimming pool is 1.0–3.0 ppm — meaning your Springfield tap water contains chlorine at roughly the same concentration as pool water. This is within legal limits and effective for disinfection, but it is the direct cause of the elevated TTHMs and haloacetic acids in Springfield water. An NSF/ANSI 42-certified activated carbon filter removes chlorine taste and odor completely and reduces the formation of disinfection byproducts at the point of use.
Bottom line: You cannot taste or smell chlorine at ~1.58 ppm the way you do in a pool because pool water is on your skin, not passing through your palate. But the chemistry is the same — and in Clarksville water it reacts with source water organic matter to form TTHMs and haloacetic acids above EWG guidelines. A whole-house activated carbon system is the most effective way to intercept chlorine before it reacts with your pipes and fixtures.
What chlorine at pool levels does to your body and home
Chlorine strips the skin’s natural oils and disrupts the moisture barrier. At ~1.58 ppm — daily shower exposure — it causes dryness, itching, and irritation. People with eczema or sensitive skin often notice significant improvement after installing a whole-home carbon filtration system.
Chlorine oxidizes hair proteins, breaking down the outer cuticle layer. This causes dryness, frizz, brittleness, and color fade in dyed hair. At pool-range concentrations, daily washing strips the natural sebum that keeps hair supple. A shower-head carbon filter or whole-house system prevents this entirely.
Chlorine is an antimicrobial agent — that is exactly why utilities use it. Consumed daily in drinking water, it does not distinguish between harmful pathogens and beneficial gut microbiome bacteria. Emerging research links chronic chlorinated water consumption to microbiome disruption and digestive sensitivity. An under-sink carbon or RO filter removes chlorine from drinking water completely.
Chlorine bleaches and degrades fabric fibers over time, causing colors to fade faster, whites to yellow, and fabrics to wear thin sooner than they should. This is especially noticeable on dark clothing and athletic wear. Whole-house activated carbon filtration extends the life of clothes and towels significantly — a measurable return on investment over time.
The same pool-level chlorine that causes red, irritated eyes when swimming is present in your shower steam. Daily inhalation of chlorinated steam during showers exposes mucous membranes to chlorine gas byproducts. People with asthma or respiratory sensitivity often notice shower-steam irritation that disappears after installing a carbon shower filter.
Dogs and cats absorb chlorine through their skin and ingest it while drinking tap water. Many pet owners report improved coat condition after switching to filtered water. Chlorinated water also stresses chlorine-sensitive houseplants — fiddle leaf figs, ferns, and tropical plants in particular. Letting tap water sit overnight allows some chlorine to off-gas, but carbon filtration removes it completely and instantly.
Chlorine and newborn health in Springfield
Infants under 12 months should not drink tap water containing chlorine without filtration — including water used to mix formula. Clarksville’s verified ~1.58 ppm chlorine residual is the highest in the Middle Tennessee guide series — nearly double Nashville’s ~1.58 ppm. The EPA sets no specific infant standard for chlorine, but pediatric health research consistently identifies disinfection byproducts (TTHMs, HAAs) from Duck River chlorination as a concern for early-life exposure.
Chlorine and its byproducts (TTHMs, HAAs) concentrate in formula made with unfiltered tap water. At ~1.58 ppm — at the top of the pool range — Clarksville tap water carries the highest disinfection byproduct formation potential of any city in this series. An NSF/ANSI 42 activated carbon filter at the kitchen tap removes chlorine completely before mixing.
A newborn’s gut microbiome is still colonizing in the first months of life. Chlorine is antimicrobial by design — it does not distinguish between pathogens and beneficial bacteria. Filtered water is recommended for all infant consumption during this critical developmental window.
A newborn’s skin is 20–30% thinner than adult skin and absorbs chlorine during bathing. Pool-level residuals in tap water dry and irritate the developing skin barrier. A whole-home carbon filter removes chlorine from bath water — the most complete protection for infants bathing daily.
Chlorine off-gasses from warm water. During an infant bath or humidifier use with unfiltered tap water, the baby inhales chlorinated steam — a concern for developing lungs and airways. Whole-home carbon filtration removes chlorine before it reaches the tap, eliminating this exposure pathway.
If you have a newborn or are expecting: An NSF/ANSI 42 activated carbon filter at the kitchen tap removes chlorine from drinking and formula water. A whole-home carbon system removes it from bath water and humidifiers as well. At Clarksville’s ~1.58 ppm level — the highest in Middle Tennessee — this is the single most important water filter investment for any household with a newborn.
The fix is simple and affordable. An NSF/ANSI 42-certified activated carbon filter — whether whole-house or under-sink — removes chlorine completely at the point of use. For Springfield homes concerned about chlorine and disinfection byproducts, TTHMs, HAAs), a whole-house carbon system addresses both problems in one installation. See the filter recommendations below for Springfield-specific sizing and pricing.
Filter Recommendations for Springfield & Robertson County Homes
Springfield's water has two distinct chemical concerns that differ from most Middle Tennessee cities: atrazine (agricultural herbicide — unique to Red River utilities) plus the standard disinfection byproducts common across the region. Fortunately, the same filter that handles DBPs — NSF/ANSI 53 certified activated carbon — also removes atrazine.
The Springfield & Robertson County Water Treatment Recommendation
WHUD and PVUD customers: Your water does not share the Red River atrazine profile. A whole-house carbon filter and RO still address your disinfection byproducts (TTHMs, HAAs) and any nitrate concerns. The NSF/ANSI 53 atrazine certification is specifically needed for Springfield and Greenbrier customers on the Red River source.
Get a personalized recommendation for your Robertson County address.
Connect with a vetted local water treatment professional — including NSF/ANSI 53 certified atrazine filtration.