Northgate Water Treatment: Honest Advice
Northgate is a premium area with newer construction, and many homeowners here are interested in optimizing their home — not just fixing problems. That's a different conversation than the one we have with Monument well water customers or Fountain PFAS cases. With Northgate's soft CSU water, the question isn't "what's wrong" but "what's worth upgrading."
What You Don't Need
Let's be direct: you almost certainly don't need a water softener. CSU water in Northgate averages around 1.8 GPG — soft by every standard. A water softener installed on soft city water accomplishes nothing for hardness (there isn't a hardness problem) and adds unnecessary sodium to your water. If a water treatment company is pushing a softener for your Northgate home without showing you a water test result above 7 GPG, walk away.
What's Worth Considering
The legitimate water quality opportunities for Northgate homes fall into two categories:
- Whole-house carbon filtration: Removes chlorine from all water in the home. You'll notice it most in the shower — no chlorine smell, less skin dryness, better-feeling hair. Also removes some TTHMs and VOCs. Cost: $800-1,500 installed.
- Under-sink reverse osmosis: The best upgrade for drinking and cooking water. Removes chlorine, TTHMs, chromium-6, lead (from any old fixtures), fluoride, and dissolved solids. Produces water cleaner than most bottled water. Cost: $400-800 installed, pays for itself vs. bottled water in 1-2 years.
TTHMs and Chromium-6: What CSU's Data Shows
CSU's annual Consumer Confidence Report shows TTHMs recorded as high as 77.8 ppb against an 80 ppb federal limit — close to the threshold. Chromium-6 has been detected above California's health guideline of 0.02 ppb (though below the federal MCL of 100 ppb). Both are reduced substantially by carbon filtration and eliminated by reverse osmosis. These aren't emergency situations, but they're legitimate reasons to consider filtration if you want the cleanest possible drinking water.
No PFAS Concern in Northgate
Northgate is far from Peterson Space Force Base, and CSU's 2024/2025 testing found no PFAS above reporting limits in the municipal supply. This is a non-issue for Northgate residents on city water.