Accurate water level and well depth measurements are essential for sizing your Simple Pump system correctly. Here's how to find or measure this critical information.
Why These Measurements Matter
Static Water Level
The static water level (SWL) determines:
- Which cylinder model you need
- Whether hand or motor operation is suitable
- System configuration requirements
Well Depth
The total well depth tells us:
- Maximum potential drawdown
- How much drop pipe to include
- Safety margin for water level changes
Method 1: Find Existing Records
Well Driller's Report
Most reliable source:
- Created when well was drilled
- Contains original water level
- Shows total depth
- May include yield information
Where to find:
- Property closing documents
- Previous owner's files
- Filed with county/state
State and County Records
Many jurisdictions maintain well databases:
- State geological survey
- County health department
- Department of natural resources
- Some available online
Well Service Company
If you've had well work done:
- Company may have records
- Can measure current conditions
- May know historical data
Method 2: Measure Yourself
Equipment Needed
- Measuring tape or weighted line (100+ feet)
- Small weight (fishing sinker works)
- Chalk or water level indicator
- Flashlight
Measuring Static Water Level
Chalk Method:
- Remove well cap carefully
- Attach weight to tape measure
- Coat weight and tape end with chalk
- Lower slowly into well
- When weight hits water, pause 2 seconds
- Retrieve and note where chalk washed off
- That depth = static water level
Electronic Water Level Indicator:
- Beeps or lights when contacting water
- More accurate reading
- Available from well supply stores
- Worth investment if measuring regularly
Measuring Well Depth
Using same setup:
- Lower weight until it hits bottom
- You'll feel it go slack
- Mark tape at well cap level
- Retrieve and measure
- This is your total well depth
Always have a helper present when working at open wells. Don't lean over the opening. Secure loose items that could fall in.
Understanding Your Results
Static Water Level Ranges
| Measurement | Classification | Simple Pump Option |
|---|---|---|
| 0-25 feet | Shallow | Suction pump or deep well |
| 25-110 feet | Moderate | 200CA, 125CA, or 100CA |
| 110-225 feet | Deep | 125CA or 100CA |
| 225-325 feet | Very deep | 100CA only |
Relationship to Well Depth
Static water level is typically:
- 10-50% of total well depth
- Higher percentage in shallow wells
- Lower percentage in deep wells
Seasonal Variations
Water levels can change:
- Seasonal drops: Summer/fall may be lower
- Seasonal rises: Spring from snowmelt/rain
- Drought effects: Extended dry periods lower levels
- Recovery: Levels typically recover over time
Recommendation: If measuring in dry season, levels may be at lowest point. Your pump should be configured for this.
What If Levels Differ From Records?
Records Show Higher Water Level
Common reasons:
- Aquifer changes over time
- Increased local water use
- Drought conditions
- Normal seasonal variation
Records Show Lower Water Level
Could mean:
- Aquifer has recharged
- Less local pumping
- Recent wet period
What to do: Use the lower/deeper measurement for pump sizing to ensure it works in all conditions.
Professional Measurement Options
Consider professional help if:
- Well is very deep
- You want video inspection
- Equipment is blocking access
- Records are unclear
A well professional can:
- Accurately measure levels
- Inspect well condition
- Check existing equipment
- Provide written report
Ready to Get Your Quote?
Once you have your measurements:
Provide:
- Static water level
- Total well depth
- Casing diameter
Get Quote:
- Online: Request Quote
- Phone: 877-492-8711
We'll configure the right system for your well.