Replies to This Discussion

Permalink Reply by JP on January 21, 2011 at 3:06

 

I am not sure where you get your "safe range".  The Louisiana DHH specifies that Chlorides shall not exceed 250mg/L for potable consumption.  Mine are over 400 mg/L.  The water is not safe to drink.  How does chlorination reduce Chlorides?  The only way I know is reverse osmosis. 

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Permalink Reply by TheCommish on January 21, 2011 at 3:21

JP see my reply above.  Cl above 250 ppm is not a health issue.  400 ppm in your water will not harm a consumer of the water.

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Permalink Reply by JP on January 21, 2011 at 3:09

There was am old Public Water Supply well 300 yards away, but the Water System shut down in 1987.  The well was developed at the same depth.  I am awaiting there last water analysis.  They verbably told me they had no problems with Chlorides when they operated the system, but I am awaiting there records. 

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Permalink Reply by TheCommish on January 21, 2011 at 3:42

JP you need to find out why the public WSW was abandoned. 300 yd is not far; their problem may now be your problem. If the public well has not been properly P&A'ed it needs to be, abandoned water wells are a common contamination source in drinking water aquifers. If is not plugged, contact the State and request it be plugged.

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Permalink Reply by JP on January 21, 2011 at 4:55

City of Shreveport took over the community system.  Well was plugged in accordance with state law.. 

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Permalink Reply by dbob on January 21, 2011 at 3:39

IP,

You are correct that it will not change chloride values. Shock chlorination may kill off bacteria potentially responsible for taste and odor problems.

Regarding chloride at 250 ppm - see the secondary drinking wate standards here:
http://water.epa.gov/drink/contaminants/index.cfm


...National Secondary Drinking Water Regulations (NSDWRs or secondary standards) are non-enforceable guidelines regulating contaminants that may cause cosmetic effects (such as skin or tooth discoloration) or aesthetic effects (such as taste, odor, or color) in drinking water. EPA recommends secondary standards to water systems but does not require systems to comply. However, states may choose to adopt them as enforceable standards....

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Permalink Reply by DJG on January 21, 2011 at 6:18

I'd agree with the earlier post replies that this sounds more like the increase in mineral content is likely due to depletion of the aquifer as the minerals do tend to increase in percentage as the well is depleted.

 

I would suggest getting a Berkey water filter system.

 

http://www.berkeyfilters.com/

 

Gravity based filtration system that is so powerful that can covert stagnent pond or lake water into potable drinking water.

 

Not cheap, they will set you back a few hundred bucks, but well worth the investment - and much cheaper than hiring a lawyer to sue the O&G when the reason for the change in your well water is not likely due to any O&G activity anyways.

 

Trust me, run your well water through this filtration system and you'll have better/purer drinking water than all those small bottles of FIJI Water that folks in Los Angeles and NYC are all paying $5 each for.

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Permalink Reply by Robert on January 21, 2011 at 8:56

Jd said that reverse osmosis will remove chlorides.  That is not true.  They will only build in a system unless a fresh supply of water is added.  Which only reduces parts per million and not remove them. 

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Permalink Reply by JP on January 21, 2011 at 9:04

Funny how RO is used to convert Seawater into pottable water.  I guess they have rain barrels to aid in the process? 

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Permalink Reply by Stevew on January 21, 2011 at 8:53

This thread is one reason why I appreciate GHS.  Where else can a person ask a technical question and get detailed answers from a variety of people involved in all aspects of O&G?  Sure, the bias here is pro-industry, but I've seldom read a post asking for information and it was not honestly given. That's real rare guys and a credit both to the members and admin of GHS.  There is no other place where people can get a variety of knowledgeable answers.

 

 

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Permalink Reply by Robert on January 21, 2011 at 9:37

JP.  they are removing the sodium portion of the salt to make the water drinkable. The chloride level of seawater in most cases is fine for drinking and therefore doesn't need removal. 

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