Well Chlorination

Please call our office for more information​.

All well chlorinations are performed by a NC Licensed Well Contractor.

Frequently asked questions

Procedure

How much does it cost?


The price is based on the size of the well (both depth and diameter) as well as location. Please call our office for an exact price.
Usually it is around $400 for a well up to 400 ft deep and $100 for every additional 100 ft (so a 425 ft well would be about $500). This is because the bigger the well is, the more chemical we have to use and the longer it takes to properly circulate and flush.




Cancellation Policy


There will be a $125 cancellation fee for chlorinations cancelled less than 24 hours before the appointment.




How WNC Independent Labs chlorinates a well


Some people will use regular household bleach - this is not recommended as it is not designed for skin contact/ingestion and has other additives in it. We use the proper chemical. We also use the proper amounts of the chemical to get it to the proper level in the water. This is based on depth, diameter, water level, etc in the well. Because we do water tests for loans all the time, we know that those usually need to be taken from a "point of consumption" at the house, so we will run the water through the house pipes (if possible). We do the run off and make sure the chemical level drops back down to the appropriate level. If we are doing the retest, we can collect the sample at the point - if its for a loan, we can collect the sample from inside the house and have it tested at our local lab.




How Long Does it Take?


WNC Indpendent Labs can usually start the cholorination within 1 or 2 business days (we do not start chlorinations Fri, Sat, or Sunday). Once its started it takes 24-48 hrs depending on the well to circulate and flush the system properly. Once that is complete, the water retest sample can be collected. If we are doing the retest, our chlorination tech can collect the sample when he is done and bring it back to our local lab and the results are ready in 2-3 business days.




What do we have to do during chlorination?


From the time the chlorinations starts until the tech says its clear, the water should not be used for anything that will come in contact with a human.
Water should NOT be used for:
Drinking, bathing, showering, washing clothes, washing dishes, cooking, watering plants, etc Water can be used for: Flushing toliets





General Information

How did Coliform/E Coli get into my well?


These do occur naturally in wells sometimes. Wells that don't get a lot of use (vacant or vacation homes) are likely to be positive for one or both. There are also physical conditions of your well that can make it more likely - a well inspect may help identifiy these. The most common and cheapest way to fix it is to have it "shocked" or "chlorinated". This would need repeated any time it tested postive. You can also install a UV Light, but it is more expensive to have installed and the bulb needs replaced every year, so typically this only used when a well has an issue that is causing it to have bacteria frequently.




Will having my well chlorinated get rid of the bacteria?


For chlorinations that are done correctly, 99.9% of the time the rest will come back absent. Occassionally, a well will need to be chlorinated a second time. Rarely, a well has some underlaying issue that is causing the bacteria and it will need a UV Light installed instead. (In our 5+ years in business, we have seen this once or twice, so it is pretty rare.) By NC Law, a homeowner can chlorinate their own well; however, we see 50 - 75% of those retests fail because homeowner do not have the right equipment and knowledge.




Who chlorinates wells?


By NC Law, a homeowner can chlorinate their own well. Otherwise, the only people who can chlorinate a well is a NC Certified Well Contractor. WNC Independent Labs is a Class A NC Certified Well Contractor (the highest level available). We've found the 50-75% of homeowner chlorinated wells fail the retest - homeowners do not have the right equipment and knowledge to do it correctly. If you hire a NC Certified Well Contractor, ask them their procedure for chlorinating. WNC Independent Labs follows the guidelines set by the state for chlorinating a well. We use the proper chemicals, to the proper level in the water, and run it out properly.
Some companies charge less, but they often fail the retest b/c they do not do it correctly: they don't use the proper chemicals or they do a "dump and dash" and leave the homeowner to do the circualtion and run off. Remember, you usuallly get what you pay for.




How WNC Independent Labs chlorinates a well


Some people will use regular household bleach - this is not recommended as it is not designed for skin contact/ingestion and has other additives in it. We use the proper chemical. We also use the proper amounts of the chemical to get it to the proper level in the water. This is based on depth, diameter, water level, etc in the well. Because we do water tests for loans all the time, we know that those usually need to be taken from a "point of consumption" at the house, so we will run the water through the house pipes (if possible). We do the run off and make sure the chemical level drops back down to the appropriate level. If we are doing the retest, we can collect the sample at the point - if its for a loan, we can collect the sample from inside the house and have it tested at our local lab.





Call Now:828.552.5174
lab@wncil.com

WNC Independent Laboratories

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