Tennessee Dental Authority · City fluoride guides
Fluoride in Brownsville’s water: above the recommended level
Brownsville’s water is fluoridated — and it runs a little high. The city’s 2025 water quality report puts fluoride at about 0.82 mg/L, above the 0.7 mg/L the CDC recommends, but well below every EPA limit. That is not a violation. It mainly changes how careful you should be with young kids’ toothpaste.
The short answer
Yes, Brownsville fluoridates, at 0.815 mg/L on average — above the CDC’s recommended 0.7 mg/L, yet far below the EPA secondary standard of 2.0 mg/L and the enforceable maximum of 4.0 mg/L. Keep using fluoride toothpaste, watch the amount for little kids, and do not add fluoride supplements on top of this water.
Water quality in Brownsville
Curious about your tap water? Tennessee Water Authority has the full Brownsville water quality guide — contaminant data, utility details, and filter recommendations.
The numbers, side by side
Brownsville Water Department — operated by Brownsville Energy Authority — draws groundwater from the Memphis aquifer and serves about 12,900 people. It adds fluoride, and its 2025 Consumer Confidence Report (the annual water quality report every public system must publish) reports the result plainly: an average of 0.815 mg/L, with individual results ranging from 0.740 to 0.950 mg/L.
Three different benchmarks get mixed up in almost every fluoride argument, so here they are, kept separate:
| Benchmark | Level | What it is |
|---|---|---|
| Brownsville Water Department (2025 report) | 0.815 mg/Lrange 0.740–0.950 | The measured average in Brownsville’s water, from the system’s own 2025 Consumer Confidence Report. |
| CDC recommended level | 0.7 mg/L | The level the CDC recommends for systems that fluoridate — the point chosen to balance cavity protection against the risk of dental fluorosis. A recommendation, not a legal limit. |
| EPA secondary standard (SMCL) | 2.0 mg/L | A non-enforceable guideline aimed at preventing noticeable tooth mottling (fluorosis) in children. Brownsville is well under half of it. |
| EPA enforceable limit (MCL) | 4.0 mg/L | The legal maximum for fluoride in public drinking water, set to protect against bone effects from very high fluoride over a lifetime. Brownsville is at about a fifth of it. |
mg/L is the same as parts per million for drinking water. Being above the CDC recommendation is not the same as being over a limit — Brownsville is over the first and nowhere near the other two.
System
Brownsville Water Department
Operated by Brownsville Energy Authority · state ID TN0000080 · serves about 12,900 people
Source water
Memphis aquifer groundwater
Wells, not river water
Fluoridation status
Fluoridated
Fluoride is added at the treatment plant
Reported level (2025)
0.815 mg/L average
Range 0.740–0.950 mg/L, per the 2025 Consumer Confidence Report
What “above recommended” actually means
Start with what it does not mean: it does not mean the water is unsafe, and it does not mean Brownsville is breaking a rule. There is no rule at 0.7 mg/L — that figure is the CDC’s recommended target. The enforceable ceiling is 4.0 mg/L, and Brownsville is nowhere close to it.
What it does mean is a trade-off that has mostly already been decided. The CDC picked 0.7 mg/L because cavity protection climbs as fluoride rises toward that point and then flattens out, while the risk of dental fluorosis keeps creeping up. So the extra margin in Brownsville’s water — roughly 0.82 instead of 0.7 — buys very little additional cavity protection.
The cost side of that trade-off is dental fluorosis: faint white spots or streaks on teeth that are still developing under the gums, which means it is a young-child issue, not an adult one. At levels like Brownsville’s, fluorosis is typically mild and mostly cosmetic — a cosmetic footnote, not a health emergency. But it is the reason the details below matter a little more here than in a town sitting right at 0.7.
The one firm rule for Brownsville parents
Do not give fluoride supplements — drops or tablets — on top of fluoridated water. Supplements exist for children whose water is low in fluoride. Brownsville’s water is already above the recommended level, so supplements would stack more fluoride on a child who is already getting more than the target amount, with no added benefit. If a dentist or doctor ever suggests them for a specific reason, that is a conversation to have with them directly — never start them on your own.
Toothpaste and varnish: keep both, sized right
Keep the fluoride toothpaste
Nothing about a 0.82 mg/L water level changes the toothpaste advice: brush twice a day with fluoride toothpaste. Toothpaste is still the most concentrated, most proven cavity protection in the house. What changes in Brownsville is how much the amount matters for small children, because they swallow what’s on the brush — and their total intake already starts higher here.
Use the American Dental Association amounts:
- Under age 3: a smear of toothpaste the size of a grain of rice.
- Age 3 and up: a pea-size amount.
- Teach kids to spit as soon as they are able, and supervise brushing until they reliably do.
A ribbon of toothpaste across the whole brush looks right in commercials and is far too much for a small child — in Brownsville, that habit alone can matter more than the difference between 0.7 and 0.82 in the water.
Varnish: your dentist’s call, based on risk
In-office fluoride varnish — the quick coating painted on at a checkup — is a judgment call based on your child’s cavity risk, not an automatic yes or no. Because the water here already contributes more than the target amount, varnish decisions in Brownsville lean on the individual picture: a child who keeps getting cavities is a different case from a child who has never had one. Ask the dentist to walk through the reasoning either way — a good one will.
On a private well?
None of the numbers on this page apply to a private well. Wells are not regulated the way public water systems are, nobody adjusts your well’s fluoride, and natural levels vary from well to well — even in the same aquifer.
The order of operations is simple: test first. Get your well water tested for fluoride, then bring the result to your dentist before making any decision about supplements, filters, or toothpaste for your kids. A decision made before a test is money — and fluoride — spent blind.
First, check whose water you actually have
Brownsville’s system is not the only one in Haywood County, and the answer changes by address:
- Haywood County Utility District, northern area: supplied by Brownsville, so the table above describes your water too.
- Haywood County Utility District, southern area: supplied by Stanton. Stanton’s report shows no fluoride row, so its fluoridation status is unverified — do not assume it matches Brownsville’s.
- Halls Water System: its fluoridation status is also unverified for this page.
Look at your water bill. The system named on the bill is your system — and if it is not Brownsville, ask that system directly what its fluoride level is.
How to confirm for yourself
- Read the source document. Brownsville Energy Authority’s 2025 Consumer Confidence Report is the report this page’s numbers come from — the fluoride row shows 0.815 mg/L, range 0.740–0.950 mg/L.
- Check CDC’s My Water’s Fluoride, the CDC’s lookup for fluoridation status by system, at nccd.cdc.gov/DOH_MWF. Search for Brownsville Water Department, TN0000080.
- Mention it at your next dental visit. Tell the office your water runs about 0.82 mg/L — above the CDC target. That context is exactly what should shape the toothpaste-amount and varnish conversation for your kids.
Want the full picture? Our flagship fluoride guide walks through the complete evidence rundown — how fluoride works, fluoride vs. fluoride-free, what the research actually shows, fluorosis, and how to think through the choice for your family.
Questions Brownsville folks actually ask
Yes. Brownsville Water Department, operated by Brownsville Energy Authority (TN0000080), adds fluoride to its Memphis aquifer groundwater. Its 2025 Consumer Confidence Report puts fluoride at 0.815 mg/L on average, with a range of 0.740 to 0.950 mg/L — call it about 0.82.
No — and it is not a violation. 0.7 mg/L is the CDC’s recommendation, not a legal limit. Brownsville’s 0.815 mg/L sits far below the EPA’s secondary standard of 2.0 mg/L and its enforceable maximum (MCL) of 4.0 mg/L. The thing dentists actually watch at levels a little above the recommendation is dental fluorosis in young children — mostly cosmetic white spots on developing teeth — which is why toothpaste amounts matter here.
No — not on top of fluoridated water. Supplements are meant for children whose water supply is low in fluoride. Brownsville’s water already runs above the recommended level, so adding supplements would push a child’s total intake higher for no added benefit. If a dentist or doctor has a specific reason in your child’s case, that conversation happens with them — never start supplements on your own.
Maybe. Haywood County Utility District’s northern area is supplied by Brownsville, so it matches the numbers on this page. Its southern area is supplied by Stanton, whose report shows no fluoride row, so that status is unverified — and Halls Water System’s status is unverified too. Check which system serves your address before assuming any of this applies to your tap.
No. Private wells are unregulated — nobody adjusts or routinely tests your well’s fluoride, and natural levels vary from well to well. Test your well water first, then talk with your dentist about what the result means before making decisions about supplements or toothpaste for your kids.
Sources
- Brownsville Energy Authority, 2025 Consumer Confidence Report — fluoride 0.815 mg/L average, range 0.740–0.950 mg/L; system TN0000080, Memphis aquifer groundwater, about 12,900 people served: BUDUTIL.com/WaterQuality/BEA_CCR_2025.pdf
- CDC My Water’s Fluoride — fluoridation status lookup by water system: nccd.cdc.gov/DOH_MWF
- U.S. Public Health Service / CDC recommendation for fluoride in drinking water (0.7 mg/L) and EPA National Primary and Secondary Drinking Water Regulations for fluoride (MCL 4.0 mg/L; SMCL 2.0 mg/L) — the national benchmarks shown in the table above.
- American Dental Association guidance on fluoride toothpaste amounts for children (rice-grain smear under age 3; pea-size amount age 3 and up).
Stanton’s water report shows no fluoride row and Halls Water System’s fluoridation status was not verified as of this page’s last update; both are stated as unverified above rather than guessed at.