Well condition and water quality
Critical itemWell water must be tested for bacteria, nitrates, and other contaminants. Well cap must be sealed. Pressure tank and pump must function properly.
Standard
Well water must be tested for bacteria, nitrates, and other contaminants. Well cap must be sealed. Pressure tank and pump must function properly.
How to check
1. Get water quality test results — test for coliform bacteria, nitrates, pH, and hardness
2. Check well cap — must be sealed and extend at least 12" above grade
3. Verify no surface water can enter the well (graded away from well casing)
4. Check pressure tank — should cycle between 30-50 or 40-60 PSI without rapid cycling
5. Run multiple faucets — check for adequate flow and pressure
6. Test for iron, manganese, and sulfur if odor or staining is present
7. Check for water treatment systems — verify they are functioning and maintained
8. Ask about well depth, yield, and pump age
Common problems
- Positive coliform bacteria test (unsafe to drink — needs disinfection)
- High nitrate levels (health hazard, especially for infants)
- Well cap damaged or below grade (contamination entry)
- Rapid pressure tank cycling (waterlogged tank or failing pump)
- Low water pressure/flow (pump or well yield issues)
- No water testing history (unknown water quality)
- Treatment systems not maintained (filters expired, salt empty)