Aurora, Colorado
Aurora Water 2025 Water Quality Report (2024 data). Hardness 113 ppm as CaCO3 (range 56–154). Residual is chloramines 1.76 ppm (range 0.13–2.2). No Measure S-style residential softener ban turned up.
- Hardness113 ppm (range 56–154)
- Chloramines1.76 ppm (range 0.13–2.2)
- TTHMs24.34 ppb (range 15.2–51.1)
- HAA514.83 ppb (range 0–54.4)
Best match for Aurora
Salt-based water softener
No district prohibition on a brine drain turned up in the current file.
A salt-based softener is the thing that actually removes hardness. Size it from your grains and how much water you use, not bathroom count. It needs a drain.
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Other options that still fit
Salt-free conditioner
A salt-free conditioner changes how scale sticks. It does not soften. Soap and spots stay closer to untreated. No brine line.
Whole-house catalytic carbon for chloramine
Catalytic carbon with a chloramine claim (NSF/ANSI 42 for chloramine). Regular chlorine carbon is the wrong box.
Under-sink reverse osmosis
The under-sink RO we actually run is Cloud RO — NSF/ANSI 58, kitchen tap, not a whole-house tank. Check the exact listing if PFAS is why you are shopping. Shop Amazon first for under-sink RO, or buy Cloud direct. Waterdrop is a tankless option if you want that path. A certifier-listed pitcher is the cheap first step. Nobody is paying for a medical claim.
Shop under-sink reverse osmosisBuy Cloud RO directShop Waterdrop reverse osmosisShop PFAS-listed pitchers
Test the tap first
A homeowner kit is a start. It is not a state-certified lab. Use a certified lab when the decision is expensive.
On the report
- Water utility
- Aurora Water
- Hardness
- Hardness (as CaCO3) average 113 ppm, range 56 to 154, sampled daily. A separate Hardness-CA row prints 95.9 ppm (range 49.6 to 185), weekly. Those are two labeled rows, not a blend we invented. — Aurora Water 2025 Water Quality Report (2024 data)
- Disinfectant
- Chlorine residual (chloramines) 1.76 ppm average (range 0.13 to 2.2). 99.52% of samples were greater than 0.2 ppm. MRDLG 4. Daily sampling, 2024. — Aurora Water 2025 Water Quality Report (2024 data)
- Brine / salt to the sewer
- No district prohibition found in current research. Searched Aurora Water and City of Aurora sewer pages and codes for a residential self-regenerating softener or brine-drain ban like LACSD Measure S. None turned up. Ask the sewer agency on the bill before you cut a brine drain.
Also around here
Extra context besides the utility report and the chart above — geology, an unregulated table, or a published study. Not a second set of printed tap numbers.
- MicroplasticsWHO’s 2019 review examined studies that found microplastic particles in treated tap and bottled water in many places. That is a published-occurrence finding, not a number from this city’s water-quality report, and we do not invent a particles-per-liter count for the tap.Microplastics in drinking-water — World Health Organization
- PFASEPA’s Fifth Unregulated Contaminant Monitoring Rule required community systems this size to test 29 PFAS and lithium in 2023–2025. Open the UCMR 5 Data Finder for this PWS. This file does not invent a detection.Fifth Unregulated Contaminant Monitoring Rule — U.S. Environmental Protection Agency
Aurora drinking water is treated and delivered by Aurora Water. The 2025 Water Quality Report is an EPA-mandated disclosure of 2024 performance. No City of Aurora residential softener ban like LACSD Measure S turned up. Ask the sewer agency on the bill before you cut a brine drain. This is not a legal opinion.
The 2025 report prints hardness (as CaCO3) 113 ppm average (range 56–154). A separate Hardness-CA row prints 95.9 ppm (range 49.6–185). We do not invent a blend of those two rows.
Chlorine residual (chloramines) 1.76 ppm (range 0.13–2.2). TTHMs 24.34 ppb (range 15.2–51.1). HAA5 14.83 ppb (range 0–54.4). Kitchen shopping stays the Cloud RO / Waterdrop path already used on other cities if a listing is why you are looking.
Sources
- 2025 Water Quality Report (2024 data) — Aurora Water. Accessed 2026-09-09.
Updated September 9, 2026. A city file is chemistry we can cite plus the sewer rule. No invented detections.