1	Common Well Complaints Grit and rock flour Sulfate reducing bacteria (SRB) Iron related bacteria (IRB)
2	Common Well Complaints Grit Develop well Pump shroud Cyclonic filter Serial filtration Rock flour Backwashing sediment filter
3	Common Well Complaints Sulfate reducing bacteria (SRB) Disinfection - use enough @ proper pH Repeat Circulation and movement Iron related bacteria (IRB) Prevention - pump placement Rehab - clean, line, and pump placement
4	Indicators of Biological Problem Slime on drop pipe and pump
5	Butch’s Water Problems Sample container on lab paperwork (left) Sample container on blue notebook (right)
6	Downhole Video Program Video Inspection Goals Note casing joints / total casing depth Seasonal water level & static water level Casing / rock seal Pump location Water production zones Pumping water level Locations for packer placement
7	April Lane Well Drilled in the 1960’s; extended abovegrade 96’⁺ deep and 20⁺ gpm Pump @ 86’; static level 26’ Water zones: 83½’ and 92¾’ to 95’ Drilled well from 110’ to 130’ Magnet measured 74’ galvanized casing Installed packer to 81’; pump @ 75’
8	April Lane Well
9	Cleaning Out Well Casing
10	Butch’s Well Rehab Blowing out water from Butch’s well (left) Water high in ferric sulfate flows over water high in iron slime. (right) Good odor too!
11	Cleaning Out Well Bottom
12	Griffitts Well Packer Vinyl PVC packer is bonded to 4” PVC pipe Liner pipe is glued to upper end of packer Outside diameter of fins is approximately 7” As liner is installed in well, fins compress and seal against rock wall Annular space above fins is filled with grout
13	The Liner 160psi liner pipe 1^st bell has been cut & saved Griffits packer with Shale Trap installed on liner pipe 121’ liner to be installed in well
14	"Well with Liner" Well with Liner Deeper water is good Seal-off small shallow zones Packer/liner is installed to maximum depth practicable (81’) Pump is installed to minimum depth practicable (75’) Proper well disinfection is essential before pump installation
15	Completed Rehab Liner pipe held with Riser Clamp Completed wellhead with 4” wellseal Complete grout at later date MockRock will be installed over wellhead
16	April Lane Well
17	"John Nykamp" John Nykamp, R.S. Environmental Health Program Specialist Guilford County Public Health Department 400 W. Market St Greensboro, N.C. 27401 (336)641-4807 (336)641-7613 FAX (336)641-3730 jnykamp@co.guilford.nc.us Well Contractor Certification Commissioner http://www.ncwelldriller.org/