1,4-Dioxane Wiki - Recently Updated Pages

CARD 1,4-Dioxane Wiki Home

HydroGeek — Wed, 03 Sep 2008 15:19:33 CDT

Welcome to the 1,4-dioxane Wiki

Working to expand the knowledge base and create interaction in the affected Washtenaw County and Ann Arbor, Michigan communities.

Whats New:

CARD Meeting Schedule

srswrep — Tue, 17 Jun 2008 18:54:55 CDT

CARD calendar

1,4-Dioxane - Water Standards by State

srswrep — Tue, 17 Jun 2008 13:01:16 CDT

from Screenshot of Google Earth Map with data from EPA state dioxane standards table

It's shocking that Michigan, steward to 20% of the earth's fresh water, has such a lax standard for the allowable levels of 1,4-dioxane in water... thanks to the state's leaders in 1995 when the residential cleanup standard for dioxane was lossened from 3 ppb to 77 ppb... and an EPA factor change soon after that increased that by about 10% to the current 85 ppb.

Maybe it's time for Michigan to once again re-establish itself at the forefront of more protective environmental standards instead of being a laggard compared to other states.

Whole Site Maps

srswrep — Tue, 17 Jun 2008 12:11:29 CDT

.2008 1,4-Dioxane Plume Map (screenshots from Google Earth map)
3D 2008 1,4-Dioxane Plume Map with Well Prohibition Zone (screenshots from Google Earth map)



.2006 1,4-Dioxane Plume Map with Well Prohibition Zone
2006 1,4-Dioxane Plume Map with Estimated Extent at 1 ppb .	.
1990 1,4-Dioxane Plume Map at 1 ppb (Google Earth version)	.

Links to Related Websites

srswrep — Tue, 17 Jun 2008 10:51:56 CDT

CARD (Coalition for Action on Remediation of Dioxane) website contains info on CARD meetings and documents

DEQ's Gelman Website contains official documents relating to Pall/Gelman contamination site

SRSW (Scio Residents for Safe Water) main website contains Pall/Gelman site data graphs, maps, news articles, etc.

SRSW (Scio Residents for Safe Water) Google Group website contains more SRSW presentations about the Pall/Gelman site

TOSC (Technical Outreach Services For Communities) contains selected Pall/Gelman site documents from 2000-2004

City of Ann Arbor Environ Coord Dept website - Pall/Gelman site contains various documents and contact/resource info

Washtenaw County website contains County Commission agenda/minutes items as well as the CARD website
also:Washtenaw County Environmental Portal

Scio Township website contains Township agenda/minutes items as well as Township contact info

Ann Arbor Township website contains basic Township info

Pall Corp website contains search function to find 10Q/10K SEC and annual report sections on Gelman site

Green Fair 2008 Update

VinCaru — Fri, 13 Jun 2008 11:53:26 CDT

Ann Arbor Green Fair June 13, 2008 6-9pm Downtown Ann Arbor

CARD will have a table at the Ann Arbor Green Fair along with Scio Residents for Safe Water (SRSW.ORG).

1,4-Dioxane Groundwater Contamination

What's New

Groundwater access and use is restricted for a significant portion of western Ann Arbor by a court-ordered Prohibition Zone. The Prohibition Zone allows 1,4-dioxane concentrations up to 2800 ppb, exceeding the 85 ppb groundwater clean-up standard.

There is a contamination plume that is nearly a mile long and 1/4 mile wide with 1,4-dioxane concentrations that exceed the 2,800 ppm Prohibition Zone standard .

In the Evergreen neighborhood, 1,4-dioxane levels have been unexpectedly increasing at the northern and eastern boundaries despite ongoing clean-up efforts.

MDEQ denied a PLS request to reduce purging by 50% of the 1,4-dioxane "bubble" that is located west of the Gelman/PLS plant site. PLS continues to purge once a month at this location.

There are ongoing discussions between PLS and MDEQ in an attempt to resolve conflicting consent agreements and current contamination conditions. The results of which should be available soon

By court order, there should be no additional 1,4-dioxane contamination exceeding 2800 ppm allowed to move east across Maple Road, to the extent feasible.

By court order, there should be no additional 1,4-dioxane contamination exceeding 85 ppm allowed to move east across Wagner Road, to the extent feasible.

April 28, 2008 Meeting Follow-up

HydroGeek — Tue, 03 Jun 2008 18:30:05 CDT

What do we need to do different:

Ask for meeting comments & concern (did it meet your needs and what do you want to know that we didn't tell you?)

Less Talk, more time for Question & Answer

More update and less history (or pre-can YouTube video)

Distill the information vs heavy detail

Data - Pall/Gelman Site

srswrep — Sat, 31 May 2008 21:49:00 CDT

February 2008 Well Data and Sampling Data (brief version) tables from the Pall/Gelman database are available as comma-delimited (.csv) files in attachments below.

The Well Data table (see attachment below) includes the following fields:

ID

Well ID

Well Name

Map Location

Date Installed

TOC Elevation AMSL (Feet)

Depth from TOC to bottom of screen (Feet)

Boring Depth (Feet bgl)

Ground Elevation

Top of Screen 1

Bottom of Screen 1

Top of Screen 2

Bottom of Screen 2

Screen Length (Feet)

Aquifer

X CORD

Y CORD

Well Driller (if known)

Comments

Statics Required?

Well Types

Sampling Interval

MonthlySorting

Print Resident Letters

ResidentID

House, Bail or Pump:

GF

Area

Group

Static ID

Sampling Comments

Location Information:

The Sampling Data (brief) table (see attachment below) includes the following fields:

Well Name

1,4-Dioxane Results (ppb)

Date Sampled

The full Sampling Data table (not available here) includes the following fields:

Sample ID

Entered

Well Name

1,4-Dioxane Results (ppb)

Date Sampled

Time Sampled

Date Received

Date Analyzed

Reporting Limit

Reporting Lab

Static Reading

Static Time

Static Only?

Comments

Bromate Results

Date Bromate

Bromate Reporting

Bromide Results

Date Bromide

Bromide Reporting

Completed Sample?

CARD State of the Cleanup

mnaud — Fri, 25 Apr 2008 13:39:58 CDT

What is CARD?

What is 1,4-dioxane?

RLC - Please expand on toxicology concerns and any updates
EPA has 1,4 Dioxane on its contaminant candidate list 3 (CCL3) - their list of compounds of concern for drinking water (cite)
1,4-dioxane is used as a solvent. Acute (short-term) inhalation exposure to high levels of 1,4-dioxane has caused vertigo, drowsiness, headache, anorexia and irritation of the eyes, nose, throat, and lungs in humans. It may also irritate the skin. Damage to the liver and kidneys has been observed in rats chronically (long-term) exposed in their drinking water. In three epidemiologic studies on workers exposed to 1,4-dioxane, the observed number of cancer cases did not differ from the expected cancer deaths. Tumors have been observed in orally exposed animals. EPA has classified 1,4-dioxane as a Group B2, probable human carcinogen. (EPA Technology Transfer Network)
Important Note - this is 1,4-dioxane and NOT DIOXIN which is a known carcinogen

Where did it come from?

From 1966 to 1986, Gelman Sciences used a reported 800,000 lbs of 1,4-dioxane. Gelman Sciences used 1,4-dioxane in the manufacture of medical filters. It was disposed of in a number of ways on the property including storage in unlined lagoons, spray irrigation, and deep well injection. The contamination has migrated in several directions off of the site. Visit the county Coalition for Action on Remediation of Dioxane (CARD) website to view the latest map of where the contamination is known or believed to be. In 1989-90, the company analysis estimated 64,000 lbs in the groundwater and it would cost $44 million to clean up. Since then, the company has removed over 80,000 lbs of 1,4-dioxane. In 2007, there are still areas with 65,000 ppb of 1,4-dioxane in the groundwater. The contaminated groundwater plumes are over 3 miles long and 1 mile wide.

Watch History video here...

Where is the Contamination in 2008?

Gelman Sciences Property - There is 1,4-dioxane contamination in the soils and groundwater on the property. Contamination still eminates from the site in several directions - southwest, west, northwest, north, northeast, and east. The largest known plume is in a deeper aquifer and headed east through Ann Arbor. Add image of site
Scio Township
- Western System -
Ann Arbor Township - there are township islands within the city boundary that have been affected.

City of Ann Arbor - Contamination has moved from the Gelman site to the east. The contamination is typically referred to based on the plume of contamination.

The Evergreen Plume (add image) has been known for some time and refers to the original subdivision affected. Most of these homes were on wells and are now connected to city water becasue there wells become contaminated. There is an extraction system in place and the company (Pall Life Sciences) is required to capture the plume at 85 ppb - the MDEQ cleanup standard. Status: It is unclear whether PLS is capturing the plume at Evergreen as required by the Consent Judgement. This is important for two reasons. 1 - the company is required to capture the leading edge of the Evergreen plume at AE3 and 2 - significant fines were placed on hold but may be back in play if PLS is out of compliance. PLS has argued that they are extracting contamination from another source (the E Plume) and are not out of compliance. They have installed additional wells to attempt to demonstrate this to the MDEQ.
The E plume is the largest plume and has moved east from the Gelman site under the west side of Ann Arbor. Visit the county website to view the latest map of where the contamination is known or believed to be. Unlike the Evergreen plume, the court has allowed PLS to let 2800 ppb of 1,4 Dioxane to migrate east of Maple Road. The 2800ppb number is based on the Groundwater Surfacewater Interface or GSI standard - or the amount of 1,4-dioxane in groundwater that MDEQ believes is allowable to "vent" to surface water - in this case hopefully at the Huron River somewhere near Argo Dam. Most groundwater flows downhill toward creeks or rivers but it is rarely that simple. The Court ordered a prohibition zone that severely limits the use of groundwater by property owners. You can see the current prohibition zone on the MapWashtenaw (n.b., does not work with Firefox) site at the Washtenaw County website.

PLS planned to pump 200 gpm from Maple Village - they are currently pumping 50 gpm.

Outstanding questions include:
- Where will the plume through the city go and where will it vent to the River?
  - PLS is required to perform a downgradient investigation and has submitted this report to MDEQ. MDEQ responded with comments.
    - There are remaining concerns that the plume could vent to the Allens Creek drain before it gets to the river. No investigation has occurred to measure 1,4-dioxane in the stormwater system to see if any of the groundwater is infiltrating into the stormwater or sanitary systems.
- How do we know that the contamination crossing Maple Road will remain under the court ordered 2800 ppb GSI standard?
  - MDEQ has required PLS to install monitoring wells in Veterans Park across from the Maple Village Shopping Center. Three wells were to be installed - two were and one could not be installed because the well rig hit boulders. PLS and MDEQ disagree about the installation of the third well - the northernmost well.
  - PLS has installed extraction and re-injection wells at Maple Village. Water is extracted from two wells - piped north to the Milk Depot property on Dexter Road where it is treated with hydrogen peroxide and ozone to destroy the 1,4 dioxane and then piped back to Maple Village where it is re-injected. Re-injection is typically problematic and the system is currently shut down because PLS cannot re-inject the 200 gpm they need to extract.

Who is responsible for cleaning up the contamination?

Pall Life Sciences bought Gelman Sciences and is responsible for the cleanup.

4/30/2007 CARD Public Meeting Questions

mnaud — Sat, 22 Mar 2008 19:21:58 CDT

The following questions were submitted by attendees in writ ting following the completion of the April 30, 2007 public informational meeting. CARD associates will work to obtain or develop answers to these questions or provide direction to the most appropriate agency related to the question.

Note: Questions have been entered as close to verbatim as possible, and have not been paraphrased. If corrections are needed, please enter the question number and correction in the comments section at the bottom of the page.

Question 1: "The 1,4-dioxane dumping went on from 1966 to 1986, and now it is 2007! Are we gaining on the plume or loosing ground?
Response:

Question 2: "Why has thee extraction/treatment well in the Maple Village Center been terminated?"
Response:

Question 3: "The new test-well at Charlton/Virginia . . . . what does it show?"
Response: PLS has completed installation of a set of three monitoring wells near
the intersection of Virginia and Charlton. Samples of groundwater were collected at ten foot intervals where water was encountered. Seven samples taken from 40 to 110 feet were all non-detect for 1,4-dioxane. Three samples taken from 150 to 170 feet had 1,4-dioxane of 3, 2 and 5 parts per billion, respectively. Samples taken at 200 and 210 feet were non-detect. Bedrock was encountered at 212 feet. Three monitoring wells have been installed, screened at 50-55 feet, 165-170 feet and 202-207 feet. (Based on an email from Sybil Kolon, MDEQ)

Question 4: "Please explain the win or lose aspects of the city lawsuit. What did it cost to litigate?"
Response:

Question 5: "Why was the community excluded (from the city lawsuit)?"
Response:

Question 6: "Please explain the affect on the storm water sewers & pipelines with regard to settlement?"
Response:

Question 7: "with the $285,000 win from the lawsuit, can you put some of that back in the community affected? The Northwest supply well need tuck pointing and fence repair & landscaping."
Response:

Question 8: " How will you compensate the neighborhoods affected? What are you doing with the $$?"
Response:

Question 9: "Page 23 of settlement; why did the city agree to points 2 & 3? They effectively eliminate citizens?"
Response:

Question 10: "What are the criteria for test/monitoring well sites?"
Response: Monitoring wells are proposed by Pall or MDEQ. The City typically looks for city right of way sites for these wells once the wells are approved by MDEQ. Typically CARD is aware of proposed well sites and to the extent possible, sites are identified that limit neighborhood disruption. The criteria depend on the rationale for the wells. Some are to identify downstream geology to understand how contaminated groundwater is likely to flow. Some are to delineate the 85 ppb boundary of the contamination.

Interactive Map based on Google Earth

srswrep — Thu, 06 Sep 2007 01:12:24 CDT

Google Earth file of Plumes, Dioxane Levels, Wells, Pipelines, Water Features, etc as presented at 4/30/07 CARD public information meeting

Google Earth - Plume and Flow Images from PLS Evergreen System Review 5/10/2007

Photos from April 30 Meeting

srswrep — Tue, 01 May 2007 15:51:24 CDT

2007-04-03 - April 30 Meeting - Planning Notes

srswrep — Tue, 01 May 2007 15:20:36 CDT

FYI - emailed arbor update and TDAVIS at AA NEWS to advertize the meeting
Meeting with SARLINGHAUS on for Friday

Agenda

CARD - Vince
Card History
Joining
Purpose of the meeting/agenda
You are not going to learn everything you need to know at this meeting
Stopping at nine - out by 9:30
Big picture of the site and
Submit questions - answer on CARD site

History of the site ROGER

Visualization - up to date map - if we can timeline of well installations
prohibition zone image

Prohibition Zone - court order expansion - Sybil
NEW MDEQ factsheet - disclosure

City settlement - Matt

Current and proposed well installations - ???
visualization - downgradient wells

Status of cleanup extractions treatment and discharges - Mike
extraction and cleanup approach
Core
Evergreen - treatment and
Maple Village
Western

CApture questions on easels

Questions

Side area for specific home/parcel questions

Miscellaneous
old videos on ctn
arbor update
city website
Disclosure

2007-04-30 CARD/DEQ Public Information Meeting

srswrep — Tue, 01 May 2007 15:18:33 CDT

There is no abstract available for this page revision.

CARD Meetings - Notes

srswrep — Tue, 01 May 2007 15:16:56 CDT

There is no abstract available for this page revision.

April 2006 CARD website ideas

srswrep — Mon, 30 Apr 2007 11:59:25 CDT

here are notes from the whiteboard at the 4/26/2006 CARD meeting...

CARD website ideas (*=first priority)

home page with 4-5 items

*purpose of CARD (Vince will draft)
stakeholder members
mission

maps (interactive?)
*plumes (Roger will prepare)
*Prohibition Zone (Roger will prepare)
archive maps

mailing list server
*general notification (already in place)
committee members email list server

meeting schedule (next meeting May 31 6:30pm city hall)
list format
calendar format
(outline of minutes from previous meetings?)

legal issues (Mike Moran will review all postings)
*definition of "facility" (DEQ will provide)
*disclosure template (DEQ/Cty will provide)
*well installation issues (Cty will provide)
elucidate issues for target groups: homeowners, realtors, lawyers, etc

glossary

search function

site map
how to navigate this site

FAQ (frequently asked questions)

data/displays
links to SRSW year-by-year Powerpoints
well logs
well data
sample data
vertical cross sections

state of cleanup reports (annually)

policy/position statements

copies of local govt resolutions (Cty, AA twp, City of AA, Scio Twp)

Overview of Gelman site
site details

site issues (and CARD, SRSW, etc official positions)
current issues (include community forum for comments?)
archive

DEQ submittals (indexed)

newspaper articles and stakeholder responses (indexed)

photos
e.g. what well installations should and should not look like

video clips

mailings database
what area was mailed to
when
copy of document mailed

previous/current groups concerned with the Gelman site

court cases (dates, status, outcomes)
Circuit Court
Contested Cases
Federal Court
Consent Judgement

links (for related info)
related organizations (overlaps with groups above)

website wish list (forum)
webmaster link

More Details on Interactive Map in Google Earth

srswrep — Tue, 17 Apr 2007 02:34:28 CDT

See ClickableMapNotes.doc attachment below for more notes.

Ideas for Interactive Map

srswrep — Sun, 08 Apr 2007 12:04:21 CDT

Website Ideas

srswrep — Thu, 05 Apr 2007 09:30:20 CDT

There is no abstract available for this page revision.

Test

srswrep — Wed, 04 Apr 2007 13:48:50 CDT

test wiki options