The pH is a bit acidic compared to other tests I've seen in this area (Central Maine). Usually I see a straight up 7.0. The well is also unusual compared to others in the area as there is probably about 100 feet of overburden according to the state geological maps. Most of Central Maine is 15 feet to bedrock but this well is in an area of fairly deep glacial sand and numerous small 'kettle ponds'.
I've been doing some reading about well construction and apparently there is likely a lead containing 'packer'. Of course, I don't really know what a packer is but I wonder if it could be contributing to the increased lead level and whether the packer could be replaced -- perhaps the next time the pump needs to be changed out.. On Tuesday I plan to talk with a couple of the local well places and see what their thoughts are.
The bottom line is that the lead will have to be dealt with in order to pass mortgage underwriting. The cheapest solution is probably treatment right at the tap but I'm looking for more information to see if I can actually resolve the underlying cause -- if I purchase the house.
I have some concern regarding the health impact of lead in the water but, frankly, my major concern is future resale. I'd ultimately rather address the source of the contamination than install a filtration system.
E. coli Absent /100mL
Arsenic, Total <5.00 ug/L
Chloride, Total 110 mg/L
** A 1:3 dilution was performed in order to bring the concentration of chloride into the calibration range. The reporting limit has been adjusted accordingly.
Copper Total 0.059 mg/L
Iron Total 0.53 mg/L
** The iron level is above the desirable limit of 0.3 mg/L.
Fluoride <0.40 mg/L
Hardness by calculation 100 mg/L
Manganese Total <0.02 mg/L
Sodium Total 54 mg/L
**Persons afflicted with particular health problems are advised to drink water with a sodium content of less than 20mg/L.
Nitrite-Nitrogen, Total <0.20 mg/L
Nitrate-Nitrogen, Total <2.0 mg/L
Lead Total 15.7 ug/L
** This water is unsatisfactory for drinking due to an elevated lead level above the EPA maximum contaminant level of 15.0 ug/L.
pH Electrometric 6.6
Total Coliform Colilert Absent /100mL