Saint Paul Reverse Osmosis Drinking Water Systems
Saint Paul water is centrally softened by Saint Paul Regional Water Services (SPRWS) to roughly 5.3 grains per gallon. That is a good start, but it does not address chlorine, lead from aging pipes, PFAS, pharmaceuticals, or fluoride. AJ Alberts installs NSF-certified reverse osmosis systems that deliver premium drinking water at your kitchen tap.
Saint Paul Water Profile at a Glance
Hardness After Treatment
5.3 gpg post-softening. Moderately hard (after central treatment)
Water Source
Mississippi River surface water. Saint Paul Regional Water Services lime softening and disinfection
What Softening Does Not Address
Chlorine, PFAS, lead from aging pipes, pharmaceuticals, fluoride.
Service Area
Ramsey County. 12 miles from Woodbury.
Why Saint Paul Homeowners Choose Reverse Osmosis
Centrally softened municipal water is a real benefit for hardness, but it is not a complete water quality solution. Lime softening at the treatment plant addresses calcium and magnesium. It does not address chlorine and chloramines added for disinfection, lead and copper picked up from aging pipes between the plant and your tap, PFAS forever chemicals from regional contamination, pharmaceuticals that pass through wastewater treatment, fluoride added at the plant, or the increased sodium content that softening itself introduces. A reverse osmosis system at your kitchen sink is the most effective and most cost-efficient way to address every one of those concerns.
Saint Paul has some of the oldest housing stock in the metro, with many homes pre-dating 1970 and containing original copper and lead service lines or fixtures. SPRWS reduces lead exposure at the source, but contamination can occur in the pipes between the main and your kitchen tap. Reverse osmosis at the kitchen sink is the single most effective home defense against lead exposure for drinking water, especially in older Saint Paul homes.
A reverse osmosis (RO) drinking water system installs under your kitchen sink and produces dedicated drinking and cooking water that has been filtered to remove up to 99 percent of contaminants. RO removes PFAS, lead, arsenic, fluoride, chlorine, chloramines, pharmaceuticals, nitrates, sodium (the byproduct of softening), and hundreds of other dissolved compounds. The result is water that tastes cleaner, makes better coffee and tea, produces clear ice, and gives you and your family direct certainty about what you are drinking and cooking with.
What Reverse Osmosis Removes From Saint Paul Water
RO removes from your water:
- Chlorine and chloramines (taste and odor)
- PFAS forever chemicals (up to 99 percent)
- Lead from aging pipes (up to 99 percent)
- Arsenic, nitrates, fluoride
- Pharmaceuticals and personal care product residues
- Sodium (the byproduct of softening)
- Hundreds of other dissolved compounds
RO does not address:
- Hardness (calcium and magnesium) at every tap (a softener handles this; in Saint Paul that is not necessary for most homes given SPRWS central softening)
- Bacteria and viruses (municipal water is already disinfected; well water needs UV)
- Iron and manganese (a dedicated iron filter handles this where needed)
Filtration System Options for Saint Paul Homes
Reverse Osmosis Under-Sink System (Primary)
NSF/ANSI 58 certified. Removes up to 99 percent of PFAS, lead, arsenic, fluoride, pharmaceuticals. Dedicated drinking and cooking water at your kitchen tap. Recommended for every home in Saint Paul.
Learn moreWhole-Home Carbon Filtration
Removes chlorine, chloramines, VOCs, and chemical taste and odor at every tap. Pairs perfectly with RO for full-home coverage. Recommended for: every home in Saint Paul, especially homes with older pipes.
Learn morePFAS-Certified Filtration
Targeted NSF-certified filtration for forever chemicals at every tap. Recommended for: every home wanting maximum precautionary protection given Mississippi River source water.
Learn moreFree In-Home Water Test
We bring our test kit to your home and run a full water quality analysis. PFAS-specific lab testing available as add-on. Recommended for every home in Saint Paul.
Learn moreRecommended Setup for Saint Paul
A reverse osmosis drinking water system under your kitchen sink as primary protection, paired with whole-home carbon filtration to address chlorine and chloramines at every tap. Homes built before 1970 should prioritize RO immediately given lead pipe risk. No softener needed because SPRWS handles hardness centrally.
This is a starting point. The right system depends on your household, water usage, plumbing layout, budget, and water test results. We tell you what you need and what you do not.
How Reverse Osmosis Installation Works in Saint Paul
Free In-Home Water Test
30 minutes, no obligation, PFAS-specific lab testing available as add-on
Custom System Recommendation
Sized to household size, water usage, and budget
Transparent Quote
Flat-rate pricing, no hourly surprises
Professional Installation
Licensed master plumbers, most installs complete in 2-3 hours, includes dedicated faucet at kitchen sink
Ongoing Service and Filter Changes
Annual checkups, pre and post filters replaced every 6-12 months, RO membrane lasts 2-5 years
Saint Paul Neighborhoods We Serve
We install reverse osmosis systems across every neighborhood in Saint Paul, including Highland Park, Mac-Groveland, Summit Hill, Cathedral Hill, Como, Frogtown, Eastside, West 7th, Battle Creek, Saint Anthony Park. Same-day service available for emergencies. Service area extends throughout Ramsey County and the surrounding Twin Cities metro from our Woodbury headquarters.
Why Saint Paul Homeowners Choose AJ Alberts for RO
Family Operated Since 1965
60 years of metro water conditioning experience
Licensed Master Plumbers
10 plumbers, 5 master plumbers, MN and WI licensure
NSF-Certified Systems
Only NSF/ANSI 58 certified RO systems installed
Free In-Home Water Test
Your actual water, not municipal averages
Flat-Rate Pricing
Exact price before any work starts, no hourly billing
Saint Paul Reverse Osmosis FAQs
Water quality data for Saint Paul:
Source: https://www.stpaul.gov/departments/saint-paul-regional-water-services
Confidence: Verified
Last Updated: May 2026
Additional resources:
AJ Alberts re-verifies all city water data annually. Found an error or have a specific concern? Call 651-738-0580 for a free in-home water test.
Ready for premium drinking water in your Saint Paul home?
Free in-home water test. Custom RO recommendation. NSF-certified systems. Family operated since 1965.
Book Service
Prefer to talk? Call 651-738-0580.