FW: info on chlordane remediation
- To: <email@example.com>
- Subject: [cg] FW: info on chlordane remediation
- From: allen parleir <firstname.lastname@example.org>
- Date: Sat, 13 Aug 2005 00:03:43 -0500
- Content-transfer-encoding: 7bit
- Content-type: text/plain; charset="US-ASCII"
- List-id: Help in developing or enhancing community garden programs.
- Sender: email@example.com
- User-agent: Microsoft-Outlook-Express-Macintosh-Edition/5.02.2106
> From: allen parleir <firstname.lastname@example.org>
> Date: Fri, 12 Aug 2005 23:38:32 -0500
> To: <email@example.com>
> Subject: info on chlordane remediation
> Hi Katherine,
> I received a request from Chris Kirby of the Regional Food Bank of OKC to
> contact you after she saw your e-mail asking questions about chlordane.
> Out of our experience with the Central Park Community Gardens here in Oklahoma
> City, I believe I have the answers to your questions and the information that
> you need in order for you to proceed.
> I suggest that we talk on the phone because the details are so extensive that
> I don't want to try to type them all into a story. I'm also not sure how much
> you know about chlordane.
> My name is Allen Parleir at (405)524-3977.
> The description that Chris gave you in her e-mail was not entirely accurate
> but I can clear that up when we talk.
> I applaud you for paying attention to the dangers of chlordane. No amount of
> chlordane in the soil is permitted for food production by the EPA or FDA...
> for anybody! Not just organic gardeners. It's not allowed for root crops and
> any crop which could possibly have soil splashed onto it like cucumbers,
> squash, tomatoes, lettuce, spinach, well, you get the picture. Eating
> chlordane is extremely carcinogenic. However, the real danger of chlordane is
> exposure of contaminated soil to human skin.
> Chlordane was outlawed in the mid-80's because of it's long half-life. It's a
> chlorinated hydrocarbon in the same family as DDT. It was used for over 40-50
> years to treat houses for termites. It was also used quite carelessly as a
> garden pesticide.
> Bio-remediation can completely eliminate chlordane in the soil. This works
> through increasing soil fertility by adding compost and growing crops which
> accelerate microbial activity. The microbes actually eat the chlordane!
> Our lots had been vacant for six to ten years and still, chlordane levels
> ranged from 900 mg/kg to over 3000 mg/kg... that's parts per million, not to
> be confused with mcg/kg which is parts per billion. We had testing done by a
> private firm and, in addition, the Oklahoma Department of Agriculture. I
> designed a bio-remdiation process which, after 18 months on one lot, 24 months
> on another lot, and 36 months on another lot: all tested 0 mcg/kg for
> chlordane. The tests were extensive: 12 holes across the lots for soil cores
> at six inches deep, 12 inches deep and 18 inches deep.
> Our story in a nutshell is that our neighborhood association was given title
> to five vacant lots where homes had been bulldozed by the county. We planned
> to use them for community gardens. We tested them for chlordane and the
> results showed that we had received vacant lots which were toxic sites. All
> state agencies said we should not use them for any kind of gardening because
> of the danger of soil contact with human skin. A very easy and quick test for
> chlordane is to look for worms. Chlordane is highly toxic to worms, and to
> birds who eat contaminated worms. We only had worms on the very edges of our
> vacant lots which is explained below.
> In theory, the chlordane should have only been an 18" swath around the
> footprint of the old house because chlordane binds to soil particles, does not
> migrate when water passes through the soil and does not rise up through the
> vascular system of plants. However, the bulldozers did a good job of spreading
> the chemical all over the lot.
> We didn't want to give up on our dream of creating community gardens on these
> sites. I made lots of phone calls but no one from any state university or
> agency had anything hopeful to say about our toxic sites. The only good use
> for the lots was to build another house which would never be vulnerable to
> termites. Or we could scrape the contaminated soil off the sites and dispose
> of it as hazardous waste which was estimated to cost in excess of $500,000.
> Not an option for us.
> While attending a community gardening conference in Houston, Texas sponsored
> by Urban Harvest, I shared our story and heard from a participant about the
> success of a man from Tucson, AZ who had used a special microbial compost to
> get rid of chlordane. I was suspicious.
> I did some more research, talked with the man from Tucson and his father from
> Arkansas and with their help, began a bio-remediation process for three of our
> lots. On the other two lots we used a physical barrier of two or three feet of
> wood chips to keep the contaminated soil away from human contact.
> Well, I typed up a lot more than I thought I would. There's still a lot more
> to share with you.
> Let's talk on the phone.
> Allen Parleir
> P.S. If you do a google search using my name, you can read a news article from
> the Arkansas Democrat-Gazette written nine months into the bio-remediation
> process about our chlordane experience and the Arkansas company that helped
The American Community Gardening Association listserve is only one of ACGA's services to community gardeners. To learn more about the ACGA and to find out how to join, please go to http://www.communitygarden.org
To post an e-mail to the list: firstname.lastname@example.org
To subscribe, unsubscribe or change your subscription: https://secure.mallorn.com/mailman/listinfo/community_garden