WELL DRILLING AND CONSTRUCTION Ken Bousfield, P.E. Utah Division of Drinking Water

BASIS FOR RULES: – Same as for springs: n Plan review (Primacy) n Engineering principles n Experience

PLAN REVIEW PROCESS: – Prior to Drilling n Drilling Specifications – After Drilling n Chemical Analysis n Source Capacity n Source Protection n Equipping Specifications

WELL DRILLING SPECS: – Drilling Method – Surface Seal – Plumbness and Alignment – Construction Materials

WELL EQUIPPING: – Type of Pumps – Pitless Adaptors – Pump Capacity – Appurtenant Equipping – Well House Construction

Well System

WELL GROUTING:

SUBMERGED WELL:

PITLESS ADAPTOR:

CONVERTED SUBMERGED WELL:

WELL HOUSE PIPING:

WELL HOUSE CONSTRUCTION: – Heating – Ventilation – Drainage – Treatment

STORAGE CAPACITY ISSUES: – Average Day Use in gallons (gal) n Residence: 400gal n Picnic/Park: 5gal/person n Visitor’s Center: 5gal/person n Campground Hydrant: 35gal/person – ADD FIRE FLOW TO VOLUMES

DISTRIBUTION CAPACITY ISSUES: – Peak Instantaneous Use n Engineering Hydraulic Network Analysis n 20 psi minimum pressure under all conditions