Grimes, California
COLUSA CO. WWD #1 - GRIMES Consumer Confidence Report opened from California Water Boards Electronic Annual Report CCR (Grimes, CA0600008). The opened California Water Boards Electronic Annual Report CCR does not print hardness as mg/L CaCO3 or labeled grains. This file does not invent one. The opened California Water Boards Electronic Annual Report CCR is the public report landing for this municipal system. A residual-disinfectant average did not print on that landing. Open the current report. This file does no...
This city’s report did not print a number we can put on the chart. Open the current water-quality report. We do not invent a value.
Best match for Grimes
Whole-house carbon — match chlorine vs chloramine
Check the sanitation district before installing a salt system.
Open the CCR for chlorine vs chloramine, then match that claim. A 42 chlorine listing is not chloramine.
Also for the kitchen
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
Some links are affiliate links. If you buy through one, we may earn a commission. That does not change the match, and it is not a medical claim.
As an Amazon Associate we earn from qualifying purchases.
Other options that still fit
Confirm hardness on the current CCR before buying
Open the current CCR for grains. This file does not invent a number from a ranking site. A salt softener needs a drain if it is legal at the address.
Shop salt-based softenersShop salt-free conditionersShop water test kits
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
- COLUSA CO. WWD #1 - GRIMES
- Hardness
- The opened California Water Boards Electronic Annual Report CCR does not print hardness as mg/L CaCO3 or labeled grains. This file does not invent one. — California Water Boards Electronic Annual Report CCR (Grimes, CA0600008)
- Disinfectant
- The opened California Water Boards Electronic Annual Report CCR is the public report landing for this municipal system. A residual-disinfectant average did not print on that landing. Open the current report. This file does not invent one. — California Water Boards Electronic Annual Report CCR (Grimes, CA0600008)
- Brine / salt to the sewer
- Check the sanitation district before installing. No city or sanitation-district residential self-regenerating softener ban like LACSD Measure S or IEUA Ordinance § 2.6 turned up on the pages we opened. That is not a statewide ban finding. Ask the agency on the sewer 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
Grimes drinking water on this file is COLUSA CO. WWD #1 - GRIMES. Searched city water and sewer pages 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. This is not a legal opinion.
The opened report prints The opened California Water Boards Electronic Annual Report CCR does not print hardness as mg/L CaCO3 or labeled grains. This file does not invent one. The opened California Water Boards Electronic Annual Report CCR is the public report landing for this municipal system. A residual-disinfectant average did not print on that landing. Open the current report. This file does not invent one. Kitchen shopping stays the Cloud RO / Waterdrop path already used on other cities if a listing is why you are looking.
Sources
- California Water Boards Electronic Annual Report CCR (Grimes, CA0600008) — California State Water Resources Control Board. Accessed 2026-09-12.
Updated September 12, 2026. A city file is chemistry we can cite plus the sewer rule. No invented detections.