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Module 4 — Water Well Drilling Agreements
Disinfection
24.
Disinfection_____________________________________________________________________
After the well is completed and pumping equipment is installed you should disinfect the
water in the well with at least 200mg/L of chlorine and left in the well for a minimum of 12
hours. Use Table 1, Amount of Chlorine for a Chlorine Concentration of 200PPM ,and the
example in Step 3 on page 51 to calculate the amount of chlorine for 200 ppm.
25.
Well head finishing______________________________________________________________
Well head finishing includes the clean up of mud and aquifer debris and removal of
material scraps.
Costs
26.
Test holes per metre (foot)_ ________________________________________________________
27.
Reaming per metre (foot)_ _________________________________________________________
28.
Drilling/boring per metre (foot) _ ___________________________________________________
29.
Casing per metre (foot)_ ___________________________________________________________
30.
Liner per metre (foot)______________________________________________________________
31.
Screen_ __________________________________________________________________________
32.
Sandpack_________________________________________________________________________
33.
Development_ ____________________________________________________________________
34.
Labor per hour____________________________________________________________________
35.
Water testing_____________________________________________________________________
36.
Reclamation of unused well_ _______________________________________________________
37.
Total Costs_ ______________________________________________________________________
38.
Payment schedule_________________________________________________________________
Guarantee
39.
Workmanship and materials should be guaranteed for a specific period of time.
Provincial regulation requires that a water
well be completed to ensure no damage will
be incurred to the pumping system, plumbing
or fixtures due to sediment in the water.
Well and pumping equipment to be disinfected
Driller to remove all surplus materials and equipment on site.
Contact local licensed water well contractors
for cost estimates in your area.
While the licensed water well contractor is
on site, you may want to get an estimate to
plug any unused wells on your property to
protect water quality in your new well. For
more information, see Module 9 "Plugging
Abandoned Wells".