Why Water Testing Matters
Regular water testing is the only way to know what's in your water and whether treatment is needed. This guide covers everything homeowners should know.
When to Test Your Water:
Well Water - Required Testing
- Annually: Coliform bacteria, nitrates
- Every 3-5 years: Comprehensive screening
- New well: Complete testing before use
- Home purchase: Full water quality assessment
Municipal Water - Optional Testing
- Concerns about tap water quality
- Pregnant or young children in home
- Immunocompromised family members
- Old plumbing (lead concerns)
- After water main breaks
Test Immediately If:
- Change in taste, odor, or appearance
- After flooding or ground disturbance
- Gastrointestinal illness in household
- New industry/agriculture nearby
- Septic system problems
- Treating for specific contaminant
Types of Water Tests:
1. Basic Bacterial Test
Tests for: Coliform and E. coli bacteria
- Most important test for well water
- Indicates fecal contamination
- Required annually
- Cost: $20-40
- Results in 24-48 hours
2. Basic Chemical Analysis
Tests for: Nitrates, pH, hardness, iron, manganese
- Common problem indicators
- Recommended annually
- Good starting point
- Cost: $50-100
3. Comprehensive Screening
Tests for: Bacteria plus 20-40 chemical parameters
- Heavy metals
- Minerals
- Volatile organic compounds (VOCs)
- Pesticides
- Industrial contaminants
- Cost: $150-300
- Recommended every 3-5 years
4. Specialized Testing
Individual tests for specific concerns:
- Lead: $25-50
- Arsenic: $25-50
- PFAS: $200-400
- Radon in water: $50-100
- Uranium: $25-50
- Pesticides panel: $100-200
Understanding Test Results:
Key Parameters Explained
Bacteria Results:
- Coliform: Should be absent/negative
- E. coli: Must be absent (serious if present)
- Positive = contamination, disinfection needed
Chemical Parameters:
- pH: Ideal 6.5-8.5 (affects corrosion and treatment)
- Hardness: Soft (0-60), Moderate (61-120), Hard (121-180), Very Hard (180+) mg/L
- Iron: Staining above 0.3 mg/L
- Manganese: Staining above 0.05 mg/L
- Nitrates: Health concern above 10 mg/L
Compare to Standards
- EPA MCLs: Maximum contaminant levels (health-based)
- Secondary standards: Aesthetic (taste, odor, staining)
- Action levels: Trigger for public notification
How to Collect Water Samples:
For Bacterial Testing
- Use sterile bottle from lab
- Don't touch inside of bottle or cap
- Remove aerator from faucet
- Run water 2-3 minutes
- Fill bottle to neck (leave headspace)
- Deliver to lab within 24 hours
- Keep cool if delayed
For Chemical Testing
- Use lab-provided containers
- Follow specific instructions for each test
- Run water several minutes
- Fill to indicated line
- Label clearly
- Some tests have preservatives in bottle
For Lead Testing
- First-draw sample (after 6+ hours no use)
- Don't run water before sampling
- Test multiple faucets
- Test hot and cold separately
Where to Test:
State-Certified Labs
- Most accurate and reliable
- Required for health department reporting
- Full testing capabilities
- Written results with interpretations
- Find labs: State health department website
Home Test Kits
- Convenient but less accurate
- Good for screening
- Limited parameters
- Follow up concerning results with lab test
- Cost: $10-100
Professional Testing Services
- Water treatment companies offer testing
- Often free or low-cost
- May include sales presentation
- Useful for treatment system sizing
What to Do with Results:
No Issues Detected
- Keep results for future reference
- Continue regular testing schedule
- Stay vigilant for changes
Bacteria Present
- Do NOT drink water
- Boil water for drinking/cooking
- Disinfect well and plumbing
- Retest after treatment
- May need ongoing disinfection system
Chemical Contamination
- Research health effects
- Determine if above safe levels
- Identify treatment options
- Consider point-of-use vs whole-house
- Get professional recommendations
Cost-Effective Testing Strategy:
Year 1 (New Well or Home)
- Comprehensive screening ($200-300)
- Establishes baseline
- Identifies any issues
Annual Testing
- Bacteria and nitrates ($40-60)
- Most critical health parameters
- Required minimum
Every 3-5 Years
- Comprehensive retest ($200-300)
- Checks for new contaminants
- Updates baseline
As Needed
- Specific tests based on concerns
- Treatment system performance checks
- After changes/problems
Our Testing Services:
- Free basic water quality screening
- Coordination with certified labs
- Professional sample collection
- Results interpretation and explanation
- Treatment recommendations
- Follow-up testing after treatment
- Annual testing reminders
Keep Good Records:
- File all test results
- Note date and location tested
- Track changes over time
- Document treatments applied
- Share with home buyers if selling
Take Action:
Don't guess about your water quality. Contact us to:
- Schedule professional water testing
- Understand your results
- Get treatment recommendations
- Ensure safe, quality water
