WELL DRILLING AND CONSTRUCTION

WELL DRILLING AND CONSTRUCTION Ken Bousfield, P.E Utah Division of Drinking Water BASIS FOR RULES: – Same Plan as for springs: review (Primacy) Engineering principles Experience PLAN REVIEW PROCESS: – Prior to Drilling Drilling – Specifications After Drilling Chemical Analysis Source Capacity Source Protection 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 – INC O MING PO WER L UB R IC A TI O N- F OO D GR A DE MI N ER A L O IL AN D F O OD GR A DE GR E AS E Well System D IS C ON N EC T M OTO R CONCRETE SANITARY OILER SEAL WELL VENT W/#14 MES H FL OOR DRAI N TO DA YLIG HT PSI GAUGE SH AF T SL EEV E PA CK IN G OR ME CH AN IC AL SE AL PA CK IN G GLA ND PA CK IN G ADJ US TM EN T NUT S SE AL W AT ER LA NT ER N RIN G AI R VA C W/# 14 M ES H SCR EE N & TU RN ED DO WN VALVES WE LL C ASIN G WELL GROUT 100 FT/MI NIMUM S TOR AG E R ESE RV OIR STUFFING BOX DESANDER DISCHARGE LINE FLOW TO W ASTE CHECK VAL VE R AD I US OF I NF L UE N CE S TA T IC WA T ER LE V E L- WA T ER TA B LE C ON E O F D E PR E SS I O N DR AW DOW N W AT E R B EA R IN G S A N D I MP ELL ERS S PI D ER , BE A RI N G, & CO U PL I NG P U MP BO W LS - B E L OW PU M PI N G L EV E L S CR E EN IMPERVIOUS FORMATION (ROCK,CLAY,OTHER DENSE MATERIAL) P UM P IN G L E VE L WELL GROUTING: SUBMERGED WELL: PITLESS ADAPTOR: PITLESS ADAPTOR: CONVERTED SUBMERGED WELL: WELL HOUSE PIPING: WELL HOUSE PIPING: WELL HOUSE CONSTRUCTION: Heating – Ventilation – Drainage – Treatment – STORAGE CAPACITY ISSUES: – Average Day Use in gallons (gal) Residence: 400gal Picnic/Park: 5gal/person Visitor’s Center: 5gal/person Campground Hydrant: 35gal/person – ADD FIRE FLOW TO VOLUMES DISTRIBUTION CAPACITY ISSUES: – Peak Instantaneous Use Engineering Hydraulic Network Analysis 20 psi minimum pressure under all conditions