People in Truckee, California who get water from the public supply are among residents whose systems have returned Nitrate detections in EPA compliance testing.

Data: EPA SDWIS, CCR Reports, ECHO Last verified: 2026-05-14

Nitrate in Truckee Tap Water

Nitrate has been detected in Truckee, California drinking water at a maximum level of 0.79 ppb — below the EPA MCL of 10 mg/L (as nitrogen).

This analysis covers 57,584 residents across 3 ZIP codes in Truckee.

Truckee's overall water quality grade is B (81/100).

Is Nitrate in Truckee Water Safe?

Nitrate was detected in Truckee water but currently falls within EPA limits. However, some health organizations argue the EPA MCL may not be protective enough.

If you are concerned, a reverse osmosis or ion exchange filter can reduce nitrate levels further.

Nitrate Levels by ZIP Code

Average nitrate level across Truckee: 0.79 ppb

Health Effects of Nitrate

• Methemoglobinemia ("blue baby syndrome") in infants under 6 months
• Increased risk of colorectal and bladder cancer (long-term)
• Thyroid disease from chronic exposure
• Possible reproductive effects

Health risk severity: High. Governed by the National Primary Drinking Water Regulations.

How Nitrate Gets Into Drinking Water

• Agricultural fertilizer runoff
• Animal feedlot operations and manure
• Septic system leachate
• Urban stormwater and wastewater discharge

What to Do About Nitrate in Truckee Water

1. Reverse osmosis is the most effective method for nitrate removal
2. Ion exchange systems designed for nitrate can also work
3. Standard carbon filters do NOT remove nitrate
4. Boiling water increases nitrate concentration — never boil for nitrate

Look for filters certified under NSF 53 / NSF 58 for nitrate removal.

Related

• Nitrate — National Overview
• Nitrate in California
• California Water Quality
• Truckee Water Quality
• Check Your ZIP Code