2025-03-11-minutes-solid-waste-and-maintenance

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Ryegrass Limited Purpose Landfill and Balefill Closed Landfill Groundwater and Leachate Sampling and Analysis Plan Kittitas County Solid Waste Standard Operafing Procedure Static Water Level Measurement Objective The objective of this standard operating procedure is to describe a method for collecting a static water level measurement. Measurements will be made from groundwater monitoring wells accurate to the nearest 0.01 foot from a standard reference point on the well casing. Materials The following materials are required for the collection of static water level measurements: ■ Well keys ■ Electronic water -level indicator ■ Weighted steel tape ■ Paper towels ■ De -ionized water ■ Health and safety equipment Procedure The following steps will be taken during the collection of static water level measurements: 1. Unlock and open well. Verify well integrity 2. Lower electronic water level indicator to the water surface. 3. When the sounder indicates that the indicator probe has contacted water, raise and lower the probe to verify exact point at which measurement should be taken. 4. Measure the depth to water, to the nearest 0.01 foot, from the reference point (notch or mark on well casing). 5. Record the measurement, to the nearest 0.01 foot, in the field notebook or on the field sampling data sheet. 6. Measure total well depth to the nearest 0.1 foot using weighted steel tape. 7. Replace well cap and close and lock protective well casing. Decontamination The following steps will be taken during decontamination of down -hole measuring equipment: 1. While winding the equipment up from the well, thoroughly rinse with de -ionized water. 2. Remove excess water from the equipment with clean paper towels prior to rewinding equipment on the reel. Notes Measurements will be made under appropriate health and safety procedures. April 2024 1553-1763-010 B-1