Moving to San Diego, CA? What to Know About the Water
Water quality essentials for anyone relocating to San Diego.
Water Hardness: 200 PPM (very hard)
If you are moving from a city with soft water, you will notice the difference immediately. San Diego's water at 200 PPM is classified as very hard. Expect mineral buildup on faucets and shower heads within weeks, spotty dishes, dry skin and hair, and significantly higher soap usage. Most San Diego homeowners with hard water install a water softener within the first year - it is the single most impactful water treatment investment for this area.
Contaminants to Know About
PFAS levels in San Diego are within EPA limits. No specific PFAS filtration needed.
Lead: Average lead levels of 9 ppb are elevated. This is especially relevant if your new home was built before 1986, when lead solder was standard in plumbing. Run cold water for 30 seconds before drinking after the water has been sitting in pipes (first thing in the morning, after work). A certified point-of-use filter at the kitchen tap ($50-$200) provides reliable protection. Learn about lead.
Chlorine is present at 2 mg/L. This is above the taste threshold - you will likely notice a pool-like taste and smell, especially in showers. A carbon filter or shower filter ($30-$40) resolves this. City of San Diego PUD is your water provider.
First-Week Water Checklist
Flush the pipes: Run every faucet (hot and cold) for 5 minutes after moving in. Water has been sitting in the pipes during the vacancy, and lead/copper levels are highest in stagnant water.
Check the water heater: Note its age (labeled on the unit). Set temperature to 120°F. In San Diego's hard water, tank water heaters last 8-10 years instead of 12-15. Tankless heaters are more vulnerable - check your manufacturer's warranty conditions for hardness limits.
Inspect fixtures: Look for existing scale buildup on faucets and shower heads. Heavy white deposits indicate the previous owners did not have a softener - and your plumbing may already have internal scale.
Request the CCR: Contact City of San Diego PUD for the latest Consumer Confidence Report, which provides neighborhood-level water quality data.
Test your tap: A $15-$25 home test kit confirms whether your specific tap matches city averages. Worth doing if the home has older plumbing.
What to Budget for Water Treatment
Priority 1: Water softener. $600-$1,500 installed. This protects your plumbing, appliances, and quality of life from day one. Reduces scale damage on water heaters, cuts soap and detergent use, and extends appliance life. Full cost breakdown for San Diego.
Nice to have: Shower filter. $30-$40. Noticeable improvement in skin and hair dryness within the first week. Easy to install, easy to justify.
Not sure where to start? Take the quiz - it factors in your budget, household size, and whether you rent or own.