SPRING DEVELOPMENT
Ken Bousfield, P.E.
Utah Division of Drinking Water
WHEN IS A SYSTEM PUBLIC?
Prior to Construction:– Plan Review Issues– Source Water Protection
After Construction– Construction Inspection
After Use Meets the “Public” Definition– Water Quality Monitoring
BASIS FOR RULES:
–Plan review a “Primacy” requirement
–Engineering principles–Experienced based rules
PRELIMINARY CONCERNS:
– Water Rights– Source Protection– Under the Direct Influence– Chemical Quality– Source Capacity
PLAN REVIEW PROCESS:
– Anticipated Design– “As Built” Plans– Bacteriologic Quality – Operational Permits
15' MINIMUM
SPRING BOX
50' MINIMUM
-SUPPLY PIPE
100' MINIMUM
BOUNDRY OF PROTECTION AREA
NATURAL DRAINAGE CHANNEL
DIVERSION CHANNEL AROUND SPRING DIVERSION CHANNEL
AROUND SPRING
NATURAL DRAINAGE CHANNEL
BOUNDARY OFPROTECTION AREA
STOCK TIGHT FENCE
DIAGRAM 6-2
BOUNDARY OF PROTECTIONAREA SEE DIA. 6-2 FOR DETAILS
50'MINIMUM
50'MINIMUM50'MINIMUM
15'MINIMUM
DIVERSION CHANNEL
TYPICALCOLLECTIONTILES
TYPICAL COLLECTIONTILES
STOCK TIGHTFENCE
SUPPLY PIPE
DIAGRAM 6-3
REQUIRED AREAPROTECTION FOR SEEPAGETYPE SPRINGS
NOTE: ALL TREES AND BRUSHWITHIN 50' OF THECOLLECTION TILES SHOULDBE REMOVED TO KEEP THELINES FREE OF ROOTS
UNDEVELOPED SPRING
WATER BEARING FORMATION
IMPERVIOUS FORMATION
SPRING
DEVELOPED SPRI NG
WATER BEARI NG FORMATION
RELATI VELYI MPERVI OUS MATERI AL
10ft.
GRAVEL
6" MI NIMUM
#4 MESH SCREEN
OVERFLOWLI NE
PERMANENT FLOWMETER
SUPPLY PIPECOLLECTION TILE
DIAGRAM 6-4
SUGGESTED DETAILS FOR SPRINGDEVELOPMENT IN ALLUVIALFORMATIONS
JUNCTION BOX
SHUT OFF VALVE
CLAY CUTOFF WALL
SPRING TRENCH DETAIL
6" 6"
RELATI VELY IMPERVIOUSBACKFILL
FINE GRAVEL
WATER BEARING STRATA
6"
COARSE GRAVEL
COLLECTIONTILE
WATER BEARING STRATA
10 FT.MINIMUM
SPRING WATER COLLECTION LINE DESI GN
UNDERMINED SPRING:
LOCK
SUPPLY PI PE
CONCRETE TUNNEL LI NI NG
SUPPLY PI PE
OVERFLOW PI PE W/ #4 MESHSCREEN
STEEL DOOR & FRAME
BULK HEAD
GROUND SURFACE
CONCRETE TUNNEL LI NI NG
SUPPLY PI PE
STEEL DOOR & FRAME
BULK HEAD
GROUND SURFACE
TOP VI EW
ELEVATI ON SECTI ON
NOTE: I NCLUDE PERMANENT FLOW MEASURI NG DEVI CE
SUGGESTED DETAI LS FOR COLLECTI ON OF SPRI NG WATERI N TUNNELS
OVERFLOW PI PE W/ #4 MESHSCREEN
DI AGRAM 6- 1
SPRI NGSPRI NG
BULK HEAD
SI DE VI EW
OVERFLOW PI PEW/ #4 MESH SCREEN
HI NGED DOOR W/ LOCK
SUPPLY PI PE
GROUND SURFACE
SPRI NG
HI NGES
GROUND SURFACE
OVERFLOW PI PEW/ #4 MESHSCREEN
FRONT VI EW
4" RISE ON ACCESS ENTRYLOCKED
HINGED SHOE BOX TYPE LIDWITH GASKET
OVERFLOW PIPEW/#4 MESH SCREEN
12" OFFREEFALL
TURNED DOWN AIR VENTW/#14 MESH SCREEN
ACCEPTABLE LINER
MINIMUM 2 FEET OFIMPERVIOUS SOILCOVER WITH LINER
MINIMUM 10 FEET OFIMPERVIOUS SOIL COVERWITHOUT LINER
OTHER REQUIREMENTS:1.NO STANDING WATER OVER COLLECTION AREA.2.NO DEEP ROOTED VEGETATION IN SPRING COLLECTION AREA.3.NO ROOTS GROWING IN COLLECTION PIPING.4.STOCK TIGHT FENCE AROUND COLLECTION AREA.5.DIVERSION CHANNEL AROUND COLLECTION AREA. 6.NEEDS A PERMANENT FLOW MEASURING DEVICE.
ADDITIONAL INFORMATION:1.DOES SPRING HAVE SOURCE PROTECTION PLAN.2.TYPE OF COLLECTION PIPE.3.CONFINED AQUIFER.4.DISTANCE TO SURFACE WATER.5.CURRENT FLOW RATE.
SPRING JUNCTION BOX:
CAPACITY ISSUES:
– Source CapacityPeak Day Use
– Storage CapacityAverage Day Use
– Distribution CapacityPeak Instantaneous Use
SOURCE CAPACITY ISSUES:
– Peak Day Use in gallons/day (gpd)Residence: 800gpdPicnic/Park: 5gpd/personVisitor’s Center: 5gpd/personCampground Hydrant: 35gpd/person