Showing posts with label NIBW. Show all posts
Showing posts with label NIBW. Show all posts

Friday, April 04, 2008

Scottsdale TCE update: Arizona American Water fined by ADEQ

From the East Valley Tribune story, written by Ari Cohn -
State environmental officials Thursday slapped Arizona American Water Co. with $69,000 in fines for two recent incidents in which elevated levels of a suspected cancer-causing chemical entered the drinking water supply of 12,000 people in Scottsdale and Paradise Valley.

The Trib article went on to state that AZAmWater (AAWC) still faces penalties from the EPA and the Arizona Corporation Commission. A call to Vicki Rosen, the EPA's community involvement coordinator for the North Indian Bend Wash Superfund site (NIBW), sort of confirmed this.

When asked if there was anything in the consent agreement entered into by ADEQ and AAWC that blocked the imposition of penalties from other agencies, she indicated that she didn't believe so, but referred me to an EPA lawyer, with whom I left a message. She also indicated that while AAWC may or may not face EPA-imposed sanctions, the participating companies (the companies responsible for the contamination in the NIBW) that hired AAWC may themselves face sanctions.

My workweek starts soon, but I'll follow up with the EPA attorney early next week, and update if appropriate.


The ADEQ press release is here.

Arizona American Water's press release is here.

I'd link to the AZ Rep's article on this, but it's just a rehash of the above two press releases.

Later!

Thursday, March 20, 2008

Brief Scottsdale Update, including TCE/Arizona American Water

...Congratulations on the group Height and Density (HAD) on gathering over 3000 signatures to force a referendum on the City Council's decision to approve the Hanover Scottsdale project. Assuming that the petition signatures survive the inevitable legal challenge (Hanover's lawyers - Shughart, Thomson and Kilroy in Phoenix), the election will probably be held in September or November.

On a related note, the rather illuminating HAD video of the harassment by thugs contracted to intimidate them was presented at Tuesday's meeting of the City Council by John Washington of COGS; the streaming video of the meeting can be viewed here. The HAD video presentation begins at approximately the 9:30 mark.

Note: The next meeting of COGS will be held on April 10 at 6:30 p.m., 8507 East Highland Avenue (north of Camelback Rd and south of Chaparral Rd--east off Granite Reef. 0

...In what had to be the quietest controversial moment in Council history, they approved the separation agreement with outgoing City Manager Jan Dolan without any discussion or debate. It was slipped into the consent agenda portion of the meeting, and few of the 100 or so people in the City Hall Kiva (and fewer still of those watching the meeting on TV) had any real clue about what they were witnessing.

Given Ms. Dolan's status as a lightning rod for the ire of certain members of the Council, I'm guessing that if Tuesday's public meeting was so peaceful, it was because last Thursday's special executive session of the council was so 'colorful.'

Oh, to be a bloggin' fly on the wall at *that* meeting. :)

...According to David Ellison, acting City Manager, speaking at Wednesday night's session of City Government 101, no timetable as yet been established for the search for and hiring of a new city manager. At this point, it isn't even known if the new manager will be hired before or after the elections in the fall.

Personally, I think that in the interests of fairness to the candidates for the job, the final interviews and selection of the manager should wait until the reconstituted Council is seated in January.

...On the TCE/Arizona American Water front, the council heard a staff presentation on some of the options available to the council to ensure a safe drinking water supply for all Scottsdale residents.

During the presentation and consideration of the matter, Paul Townsley, president of Arizona American Water announced that one well, SRP PCX1 has been permanently disconnected from AAWC's water distibution system. The water in the well is the source of TCE in AAWC's water supply and will continue to be remediated; the treated water will probably be discharged into the Arizona Canal.

He went on to announce that of the three options that staff presented to the Council (do nothing, buy the Scottsdale portion of AAWC's system, or join Paradise Valley in obtaining the entire system), he and AAWC (and AAWC's parent company) support the 'do nothing' option and that AAWC isn't for sale, in whole or in part.

I'm not sure if that stance is real or just a negotiating position, because as Councilman Bob Littlefield pointed out, American Water is preparing for an IPO, so in essence, it will *all* be for sale soon.

Mr. Townsley's presentation started at around the 3 hour, 48 minute part of the video.

In the end, the Council voted to expand the study to gather more detailed information about the actual costs and benefits of acquisition.

Later!

Friday, March 14, 2008

Scottsdale Update

...On the TCE/Arizona American Water (AAWC) front -

I attended a presentation from the City of Scottsdale put on by Suzanne Grendahl and Art Nunez of the City of Scottsdale (previously mentioned here) regarding the City's operation of the Central Groundwater Treatment Facility (CGTF) on the northwest corner of Pima and Thomas. The impetus for the presentation was concerns about the likelihood of a CGTF-based repeat of the incidents at the Arizona American-operated Miller Road Treatment Facility (MRTF) (background here and here).

I can say that, based on the presentation, while a failure such as that which occurred at MRTF is still possible at CGTF (equipment failures are always possible, no matter how well designed and maintained that equipment), the systems that the City of Scottsdale has in place make it exceedingly unlikely that such a failure would go undetected, such as happened at MRTF for more than 16 hours.

Not only is the site physically staffed 10 - 12 hours per day, seven days a week, the site is subject to ongoing remote computer monitoring (SCADA) during the off-hours and at least one physical walk-through by a city water treatment operator during the night.

Definitely an improvement on AAWC's procedures, which allowed a failure to go undetected from 2:30 p.m. on one day until after 6:30 a.m. the next.

- In addition to this info about the control systems at CGTF, Ms. Grendahl and Mr. Nunez briefly covered a planned improvement project at the facility. It won't affect TCE remediation; it's just intended to reduce the hardness of the water from the facility into alignment with that available in the rest of the city. The City has tentatively scheduled an open house at the site on April 8, 2008 for 6:00 p.m.

For more info, contact Suzanne Grendahl at sgrendahl[at]scottsdaleaz.gov or 480-312-8719.

- Lastly (for now :) ) on the TCE/AAWC issue, on Tuesday night the Scottsdale City Council will hear the results of a study they ordered City Staff to compile on possible options for water service to the 1400+ Arizona American Water customers in Scottsdale.

Those options will include maintaining the current system, with the City working with AzAm Water to improve service to the company's Scottsdale customers, purchasing the Scottsdale part of AAWC's system, or working with the Town of Paradise Valley to purchase the entire AAWC system in the affected area.

Each of those options has its costs and benefits; the "highlight" of those costs is that the estimated value of AAWC's operation is in excess of $50 million.

That could be a tough nut to get past the Scottsdale taxpayers/voters during an election year.


...In other, more election-related Scottsdale news, there is a group called Height and Density, that was formed to fight Council approval of a high-density, high-height development project, the Hanover Project. HAD is working on collecting enough signatures to force the Council's decision to a referendum.

The Hanover Project is helmed by Eric Kenney of Hanover RS Limited Partnership from Texas. They've formed a counter group, Citizens for Smart Growth. That counter group has reported two major expenditures thus far - $10K to retain legal counsel and more than $7700 to hire a signature gathering firm, Derrick C. Lee's Campaign Finance Co. LLC, aka Lee Petitions.

That's where it gets interesting. Turns out that Lee Petitions does more than collect signatures; they try to intimidate and suppress those who dare to oppose their clients.

Lee Petitions has a colorful history, including fraudulent signatures (AZ, CO, and MT) and heavy involvement with Nathan Sproul, the man who would be an Arizona version of Karl Rove.

One of the other organizations involved with the Hanover Project in Scottsdale? Technical Solutions, the lobbying firm owned by erstwhile Republican Congressional candidate in CD5, Susan Bitter Smith.

Guess she has a decision to make, if she really wants to win the Republican nomination in CD5 - respect the voters in the district, or keep her industry clients happy.

If you have time, money, want to sign HAD's petition, or just despise bullies as much as I do, contact Tom Giller at 480-994-1181.


...At last night's meeting of COGS, I heard about another candidate entering the race for City Council, but I haven't been able to confirm it as yet. Another candidate would balance the apparent non-candidacy of Richard Mueller. Mr. Mueller has filed organizational paperwork but has yet to exhibit any real activity, including responding to emails from me and MSM representatives seeking to learn about his candidacy.

Later!

Monday, February 25, 2008

Groundwater treatment update presentation - City of Scottsdale

Just received the following from Vicki Rosen, the EPA's Community Involvement Coordinator for the North Indian Bend Wash (NIBW) Superfund site. It concerns the Central Groundwater Treatment Facility (CGTF) operated by the City of Scottsdale (in other words - *not* the facility that has had all the issues recently, the one operated by Arizona American Water) -


Dear NIBW CIG:

Here's an invitation from the City of Scottsdale
regarding the Central
Groundwater Treatment Facility.  Please feel free to contact Suzanne 
Grendahl directly with any questions.

Vicki


The City of Scottsdale would like to invite you to an
informal presentation and discussion of the control systems in place at 
the CGTF.  Since the incident in January at the MRTF, we have been 
questioned about whether this could happen at the CGTF.  We hope 
to explain the redundant systems and alarms that are in place at the 
CGTF to address any concerns.  In addition, the City will give 
a brief description of some additional treatment (TDS reduction) 
that will be added to the CGTF over the next two years, unrelated 

to the remedy. The presentation will be held Thursday, March 13, 2008

at 9:30 a.m. at the City of Scottsdale Water Campus (8787 E. Hualapai Drive).

We look forward to seeing you.

Suzanne Grendahl, Water Quality Director
City of Scottsdale
480-312-8719
sgrendahl[at]scottsdaleaz.gov

Any questions should be directed to Ms. Grendahl at the above address or to
Vicki at Rosen.Vicki[at]epamail.epa.gov.

Later!

Tuesday, February 05, 2008

TCE and Scottsdale's water: update on last month's contamination incident

The following is a long post, mostly of the 'copy and paste' variety, so let me summarize -

The Miller Road Treatment Facility remains shut down, and the EPA has ordered a full investigation. The EPA has requested a meeting with the Participating Companies (PCs) this week to discuss a number of options, including leaving the MRTF off-line as far as providing drinking water - it would just be a treatment facility aimed at controlling the spreading groundwater contamination plume. Other options include adding redundant systems.

I've copied and pasted where I could, but for some of it, I had to transcribe letters. I apologize for any typos (mostly misspellings) and take responsibility for those. However, there were a number of instances of poor grammar or awkward word choice. Those are the responsibility of the original writers.

If anyone is interested in the original email and attachments, drop a line to me at cpmaz[at]yahoo.com or contact Vicki Rosen at Rosen.Vicki[at]epamail.epa.gov to be added to her mailing list for the NIBW Community Involvement Group.

On to the actual post...

Vicki Rosen, the EPA's Community Involvement Coordinator, sent out an email yesterday regarding January's incident that affected approximately 5000 customers of Arizona American Water.

The message in its entirety (note: I adjusted the formatting and punctuation for readability, but made no content changes in copying the note or its attachments - except for editing out a couple of phone numbers) -



Hello CIG members,


I wanted to give you a quick update related to the failures at theMiller Road Treatment Facility (MRTF).


First, I've attached at the bottom of this page the Incident Report on the January failure which EPAreceived from the Participating Companies on January 23 and a letter EPA sent to Motorola on February 1. Second, I want to reiterate a few important points:



EPA has ordered a complete investigation into the causes of the incidents.
EPA has ordered a thorough evaluation of all options to ensure that it never happens again.
The treatment plant will remain shut down until EPA, the State and the County are satisfied it will operate safely.
Fines and penalties under the Consent Decree and Safe Drinking Water Act are likely down the road, but for now our highest priority is to ensure clean drinking water to the public.
EPA will review notification procedures that are in place to determine if they are adequate or need to be revised.
Below is information the Arizona American Water Company sent to its customers regarding the exposure the public may have received during the most recent event:


U.S. EPA advises that due to the short term duration of the exposure, the public should not experience and adverse health [sic] affects from tap water that was consumed in the 24 hour period prior to notification and shutting down the system. This would apply to both children and adults consuming up to 6 liters of water per day when TCE levels may have exceeded federal drinking water standards.
Nonetheless, residents with concerns regarding their particular health condition should consult their medical provider. The EPA has shared the sampling data on which this information is based with the ADEQ and Maricopa County.


I will be back in touch with you all as I have more information. In addition, I'm developing a fact sheet for the entire NIBW mailing liston the incident and what's being done about it.


Best,


Vicki

(See attached file: Transmittal_J_Watt.012308.pdf)
(See attached file: MRTF.pdf)


The text of the letter from the NIBW participating companies -


January 23, 2008

Jamey Watt
U.S. ENVIRONMENTAL PROTECTION AGENCY
Region IX (SFD-8-2)
75 Hawthorne Street
San Francisco, CA 94105-3901


Re: Discharge of Groundwater Exceeding Treatment Standards from Miller
Road Treatment Facility



Dear Mr. Watt:

This letter is formal notification that a malfunction at Miller Road Treatment Facility (MRTF) resulted in discharge of groundwater to the Paradise Valley Arsenic Treatment Facility (PVARF) that exceeded the treatment standard of 5 ug/l for trichloroethene (TCE). The equipment malfunction occurred on Tower 3 while treating groundwater extracted from well PCX-1. This notification complies with the seven-day written response requirement as specified in the North Indian Bend Wash Superfund Site Sitewide Operation and Maintenance Plan, dated June 15, 2006.

The blower on Tower 3 shutdown for unknown reasons at approximately 2:30 p.m. on Tuesday, January 15 after the operator had left MRTF for the day. The situation was detected on Wednesday, January 16 at approximately 6:30 a.m. when the operator returned to MRTF for his next shift. At approximately 6:45 a.m., the operator reset the control command and restarted the blower. The treatment train was shutdown at approximately 9:30 a.m. Arizona American Water notified the North Indian Bend Wash Participating Companies of the incident at approximately 10:00 a.m. Remedial Project Managers of Environmental Protection Agency and Arizona Department of Environmental Quality along with City of Scottsdale Water Department staff were contacted and verbally notified of the water quality incident on the same day.

Samples of water were immediately collected by AAW personnel at the MRTF and PVARF and submitted to Transwest Geochem, Inc. for rush analysis of NIBW chemicals of concern (COCs). Laboratory analysis of a sample collected from the MRTF effluent at approximately 9:00 a.m. on January 16 indicated a concentration of TCE at 15 Eg/l. A sample collected at approximately the same time at PVARF had a TCE concentration of 22 Eg/l.


Arizona American Water (AAW) has collected additional samples at PVARF and the Paradise Valley drinking water system. Those data have been submitted to and reviewed by EPA, Arizona Department of Environmental Quality, and Maricopa County. AAW has performed extensive response actions and is in communication with their customers and the appropriate agencies regarding the incident.

Well PCX-1 and Tower 3 had been operating continuously without incident since December 14, 2007 following extensive start-up testing. An aggressive monitoring program since mid-December indicated that treated water from MRTF has met treatment standards for the NIBW COCs.

The MRTF control system includes five interlocks associated with blower operation. These interlocks are low air flow rate, high and low air pressure, blower high vibration, and blower status. Initial investigation into the incident has revealed that moisture in the tubing from the air flow rate element to the transmitter prevented the measurement to drop below the interlock set-point when the blower shutdown.

The pressure monitoring device had been replaced, but not fully integrated into the control system and therefore the interlock was not active. Failure of the control system to recognize that the blower had shutdown based on status is unclear at this time.

The MRTF control system also includes redundant operator notifications in the event of certain alarms and shutdowns. Neither of the notification systems responded to the blower shutdown and no notifications were made to alert the operator of the equipment malfunction. Further investigation and testing will be required to determine the exact reason why the blower shutdown in the first place; why the blower status parameter did not initiate an alarm and treatment train shutdown; and why the redundant operator notification systems did not work.

As you know, the MRTF will be under going a non-routine preventative maintenance rehabilitation beginning in February 2008. The rehabilitation activities at MRTF include replacing the packing in each tower and upgrades to instrumentation. Based on the instrumentation and control system malfunctions associated with this incident, the NIBW Participating Companies will also ensure that there is a detailed review and validation of the MRTF control system during the rehabilitation project and that upgrades recommended as a result of this review are implemented.

If you have any questions, please feel free to call me.

Very truly yours,

Dennis H. Shirley, P.G.



The letter from the EPA to Motorola -

February 1, 2008

Mr. Michael Loch
Corporate Director, EHS Strategic Initiatives
Motorola Inc.
1303 East Algonquin Road, Mail Drop: 3rd floor
Schaumburg, Illinois 60196


Subject: Miller Road Treatment Facility, Indian Bend Wash Superfund Site, Phoenix, Arizona


Dear Mr. Loch:


The purpose of this letter is to convey the Environmental Protection Agency's (EPA's) concerns regarding the October 2007 and January 2008 incidents at the Indian Bend Wash Miller Road Treatment Facility (MRTF) which have resulted in discharges of of groundwater in exceedence of the treatment standard of 5 ug/l for trichloroethene (TCE). These continued failures at the MRTF are unacceptable to EPA. We expect a full investigation into both incidents and an evaluation of a full range of options to ensure that failures never happen again.


While we are evaluating our enforcement options, our highest priority is to ensure that safe drinking water is provided to the residents of Scottsdale and Paradise Valley. Therefore, pursuant to the Consent Decree (CD), Motorola on behalf of the Participating Companies (PCs) may not restart the treatment plant until all levels of government are confident that the system will provide clean drinking water and approval is formally granted by EPA, the State, and Maricopa County.


The first failure at the plant, which occurred during a planned maintenance event sometime between October 9, 2007 and October 17, 2007, resulted in incomplete remediation of the the groundwater at the MRTF. The effluent water from MRTF was sampled on October 15, 2007 and the result was 9.3 ug/l of TCE. This water then traveled to the Paradise Valley Arsenic Removal Facility (PVARF) where it was blended with water from other sources at a ratio of approximately 1 to 3 before entering the distribution system. Based on this blending, we project that the water served to the public was below the 5 ug/l MCL for TCE.


Upon learning of this plant failure, EPA and Arizona Department of Environment Quality (ADEQ) began an investigation of the incident which included meeting with the PCs and Arizona American Water on December 17, 2007. During our meeting, Motorola could not fully explain what happened at the Plant during this incident but they assured us that this was an isolated incident resulting from maintenance work being conducted at the plant. We were told that MRTF was to undergo a full rehabilitation that would result in performance improvements. EPA sent a letter to the PCs on December 14, 2007 requesting additional information needed to complete our assessment of the incident. In this December 2007 letter, we outlined short-term and long-term procedural requirements for MRTF to ensure that this type of incident did not reoccur during maintenance events. The PCs responded in a January 4, 2008 letter but did not commit to any procedural or equipment modification as requested. It is unclear at this time if the procedures could have prevented the second incident from occurring because of the uncertainties surrounding both incidents. However, we will conduct a full evaluation of all of the possible interim measures and long-term options taking into account information learned from both failures at the Plant.


A second malfunction at the plant occurred on January 15, 2008. The PCs contacted EPA upon discovery of the equipment malfunction and provided formal notification in a letter dated January 23, 2008. The equipment malfunction occurred on Tower 3 which is used to treat groundwater from PCX-1. The most recent sampling results from PCX1 show TCE concentrations at approximately 70 ug/l. No operator was present at the Plant when the malfunction occurred and the notification systems and alarms failed to function properly. As a result, water from PCX-1 was discharged from MRTF without treatment from 2:30 pm on January 15, 2008 until 6:30 am on January 16, 2008 when the operator returned to the Plant. No samples were collected from the MRTF or PVARF effluents when the malfunction was discovered at 6:30 am. The operator reset the control command and restarted the blower at 6:45 am. The system operated properly from 6:45 am until it was shut down entirely at 9:30 am. The MRTF effluent was sampled at 9:30 am, several hours after the system had been restarted, and TCE was detected at 15 ug/l. The PVARF effluent was sampled at the same time and TCE was detected at 22 ug/l. The PCs indicated that they, along with Arizona American Water, did examine flow conditions during the 16 hour period of the malfunction and based on their calculations believe that the 22 ug/l TCE detected in the PVARF effluent is likely representative of the TCE concentration that entered the drinking water system.


It is the responsibility and legal obligation of the PCs to ensure that the groundwater remedy selected at the NIBW site meets the water quality standards established in the Record of Decision. At this time, the EPA is not confident that the MRTF will completely remediate the groundwater as currently designed or that procedural changes can be put in place sufficient to ensure that a similar incident does not occur in the future. At the same time, both EPA and the State are concerned that if the system remains off too long the plume may spread and impact surrounding wells.


We request a meeting between EPA, ADEQ, and the PCs the week of February 4, 2008 to discuss implementation of interim measures necessary to capture the plume and the process of evaluating the long term options. Interim measures would involve pumping and treating the contaminated groundwater, but not yet serving the treated groundwater as drinking water. Interim measures will give us the time to thoroughly evaluate long term options.


Finally, we request that the PCs respond to the attachment by Feb 22, 2008. If you have any questions regarding this letter, please contact Sheryl Bilbrey at (xxx) xxx - xxxx or myself at (xxx) xxx - xxxx.


Sincerely,


Keith Takata
Director, Superfund Division


Attachment to EPA's letter -

MRTF Attachment
Responses to be submitted to EPA by Feb 22, 2008.

Concurrent with developing responses to this attachment, EPA and the State request a meeting with the PCs, the week of February 4, 2008 to discuss interim measures to pump and treat the contaminated groundwater but not yet serve the treated groundwater as drinking water. While the interim measures are in place, we will have the time to thoroughly sidcuss and carefully decide long term options as described in the last section of this attachment.

The January 23, 2008 letter provides some information regarding the plant failure, however there is addition information required under Section 8.2 of the Operation and Maintenance (O&M) plan that was not included. Specifically, information regarding the person who discovered the malfunction must be provided. We also request that all electronic data from the plant be retained.

Compliance requirements for Consideration as part of the Overall Comprehensive Evaluation of the MRTF for Long Term Operation

EPA formally issued a response to the October 15, 2007 incident on December 14, 2007 outlining short-term and long-term compliance requirements associated with the overall operation of the MRTF, "start-up" sampling requirements, bi-weekly sampling, and notification requirements. Attachment 2 of the letter also included short term requirements for a detailed engineering evaluation of the Tower 2.

The recent failure of Tower 3 warrants a revision to this response letter to include a detailed engineering evaluation on the entire MRTF plant and associated groundwater extraction wells. As a result, the PCs must implement the following requirements in addition to the requirements outlined in the December 14, 2007 response letter to address the long term operation of MRTF. This includes at a minimum, addressing the following key issues:

* A detailed engineering evaluation of Towers 1, 2, and 3. This evaluation should be based on the original design of the MRTF as a basis of comparison. This evaluation should also include the extraction wells and their associated mechanical, electrical, instrumentation, and control systems.

* Provide a detailed work plan for an engineering evaluation of the entire MRTF facility and extraction well systems. This work plan should include a comprehensive and rigorous evaluation and assessment of key equipment, instrumentation and control systems similar in scope to an initial plant start up after construction (e.g. each instrumentation element and control loop is tested individually as well as part of an overall system). As part of the detailed engineering evaluation, trend analysis for all the measured operating and status parameters on the PLC should be done to better understand what caused the system components to fail and what repairs are necessary.

The work plan should also include review and reassessment of all operation and maintenance plans and associated procedures and protocols to validate that operation and maintenance procedures and functions are being properly implemented. Perform all necessary maintenance on Towers 1, 2, and 3 and extraction wells to reflect original design specifications. We suggest the following procedures should be incorporated into the operation and maintenance plan: 1) conduct monthly inspections of these Towers and extraction well systems to check compliance with operational and maintenance plan requirements. Provide a summary report of these observations. Inspections should include verifying alarm conditions and operational response for a non-compliant condition, 2) continue bi-weekly sampling at each of the Tower effluents for a minimum period of 30 days after each of the Towers is compliant with its efficacy. During start-up of each Tower, daily samples with fast turn-around-time should be considered at least for the first 5 days of operation, then switch to bi-weekly sampling as discussed above.

Evaluation of Remedy

Prior to MRTF shutdown, the treated water was discharged to the Paradise Valley Arsenic Removal Facility (PVARF) to be further discharged to either the drinking water supply or the canal depending upon the compliance requirements at the PVARF. We have requested an immediate discussion of interim measures we believe these additional long-term options must also be evaluated:

* Re-injection: Re-inject water back into the aquifer after it is treated at the MRTF. This option would require installation of new injection wells.

* Discharge to Canal: Discharge all treated water at the MRTF to the canal at the PVARF indefinitely.

* Operate More Towers at Reduced Capacity: Operate at least two towers at approximately half capacity each instead of just one tower at near full capacity. In this scenario, if one system were to fail, the effluent contaminant exceedance of the downstream composite water (one-half treated + one-half not treated) would be reduced significantly by about 50 percent.

* Redundant Treatment: Reconfigure the plant plumbing to put two towers in series and use the second tower as a redundant treatment to the first tower. Both towers would have to fail in order to cause a release of untreated water. This alternative would be in addition to the recommended compliance requirements noted above.

* Secondary Treatment: Use Liquid Granular Activated Carbon (LGAC) to treat the groundwater after the air strippers to remove any remaining TCE. This system will serve as a redundant system after the air strippers.

* Continuous VOC Monitoring: Installation of a VOC monitoring sensor to monitor TCE concentrations at a higher sampling frequency. This option would simply detect any TCE exceedances in the effluent of the air strippers. If a TCE exceedance is encountered, then interlocks connecting to the sensor would be programmed to shut the entire system down.

Wednesday, January 23, 2008

The Scottsdale City Council and water contamination

There was a theme to Tuesday night's meeting, and that theme was "It's an election year."...

At last night's meeting of the Scottsdale City Council, the council considered an item placed on the agenda by Councilman Ron McCullagh to direct City staff to research and report back on the ramifications and impacts of a possible City "acquisition of the portion of the Arizona American Water Company that serves Scottsdale customers."

There was a few minutes of discussion, where each member of the council, especially those up for election this year, chimed in on the subject. Most took the opportunity to affirm their vigilant concern for the welfare of Scottsdale's residents.

In the end, Councilman McCullagh expressed the strongest condemnation of Arizona American Water, calling it a "poor corporate citizen" with "poor customer service."

Did I mention that Councilman McCullagh is a customer of Arizona American Water? :))

The council finally did pass a motion directing City staff to research adding Arizona American's Scottsdale customers to the City of Scottsdale water system.

I don't think this will actually go anywhere; it seemed to be more an exercise in "showing the voters that we're on top of things" than anything else. The council members seemed to hope that the staff's report will say that the problem has been dealt with and no one needs to worry any more.


Of course, the election-year posturing during the AzAmWater discussion was nothing compared to the sniping and backbiting that engulfed the Council (or at least 3 member of it) during the consideration of the item that preceded it, a request by Councilman (and more importantly, mayoral candidate) Jim Lane for an update on the progress of the protracted (and often adversarial) negotiations between the City and Barrett-Jackson for B-J's continued use of WestWorld for its annual collector car auction.

Last year, in an effort to break the logjam, Mayor Manross stepped it and took personal control of those negotiations.

The logjam remains, and many in the city have used that to criticize the Mayor (I haven't followed this particular topic all that closely, so I don't know whether or not those criticisms are justified.)

Two of the loudest critics, Lane and Tony Nelssen, sit on the City Council.

So does a third critic, Bob Littlefield, but he was remarkably silent during this discussion. Not sure why. (He is said to be mulling a run for Mayor, but he would have to resign his position on the Council to make such a run. He may decide that too many candidates could split the anti-Manross vote and just support Lane.)

Anyway, the three of them (Manross, Lane, and Nelssen) spent a big chunk of the meeting interrupting, talking over and just plain pointing the finger of blame at each other.

Lane tried to undercut Manross by proposing the formation of a blue-ribbon citizens' commission to handle the negotiations. His motion died for lack of a second, but his message was sent - he doesn't think that Manross can handle the job.

And when Lane wasn't criticizing Manross, Nelssen was.

Nelssen brought up the point that a couple of months ago, he suggested that Craig Jackson and his staff be invited to meet with the Council. Manross stated that she didn't want to turn this into "a political circus."

Nelssen responded to Manross by saying "You run these meetings. It's *your* responsibility to keep them from being a political circus."

Manross just stared at Nelssen for a "if looks could kill" moment.

More than a few of us in the gallery chuckled and whispered "yep - it's an election year."


Video of the meeting (the 'regular' meeting, dated January 22, 2008) is available on this page; the Barrett-Jackson part of the meeting starts at around the 17:00 minute mark and lasts 30 minutes or so; the AzAmWater part starts at around the 50 minute mark.

Later!

Monday, January 21, 2008

Water company on the agenda of the Scottsdale City Council

In light of the events of the past week, it should come as no surprise that the Scottsdale City Council has changed its agenda for Tuesday's meeting to include a discussion of the Arizona American Water Company.

What is a little surprise is the wording of the agenda item itself -

***16B. Acquisition of Arizona American Water Company

Request: At the request of Councilman Ron McCullagh, discussion and direction to staff to investigate and analyze the legal and financial impacts of acquisition of the portion of the ArizonaAmerican Water Company that serves Scottsdale customers.


"Acquisition"??

That should make for an interesting discussion.

More on the water contamination situation:

As reported on Saturday, the tap water ban for AZ American Water's customers has been lifted, the facility is completely shut down and the investigation into the incident is continuing.

According to Todd Walker, spokesman for Arizona American Water, the Miller Road Treatment Facility won't be brought back online until the issue and process have been reviewed and resolved.

The EPA was closed Monday due to the MLK holiday, but I'll contact Vicki Rosen at the EPA before I head out to the City Council meeting on Tuesday.

During my talk with Walker, I asked for a comment on the Scottsdale City Council agenda item, but he demurred, saying that he didn't know enough about it to have a comment.

I should have more info tomorrow night.


An observation about the whole thing -

I've got to give credit where it is due - at the November meeting of the NIBW Community Involvement Group (post on that here) where people found out about an "incomplete remediation" incident at the MRTF, almost a month after it occurred, was marked by community anger at the lack of communication.

That failure was certainly corrected with this incident with the emails, reverse 9-1-1 calls, and media notifications, all made the day that the blower malfuntion was discovered.

Many people have complained that they didn't receive the notifications, and their anger and frustration is understandable, but under the communication plan agreed to by the EPA and all of the participants, they only had to send out a letter within 30 days.

Perhaps their communications missed some customers, but they did go above and beyond and deserve credit for that.

Save the criticisms for the apparently chronic problems at the MRTF. :)

Saturday, January 19, 2008

The tap water ban has been lifted in Scottsdale and P.V.

According to AZCentral.com -
A three-day ban on using tap water provided by the Arizona American Water Co. affecting about 5,000 Paradise Valley and Scottsdale residential and commercial customers has been lifted.


The article goes on to cite the Arizona American Water Company's latest press release advising its customers to run their taps to clean any possible contamination out of their systems, including running their hot water to clean out their hot water tanks.


In honor of this week's events, let's call it "The Great 2008 Paradise Valley/Scottsdale Cluster-Flush."


Stay tuned on this one - the Arizona Corporation Commission is expected to have hearings about this, PV (and probably Scottsdale) officials will be meeting with company officials, and Congressman Harry Mitchell is going to bring it up at the February 7, 2008 meeting of the House Transportation and Infrastructure's Subcommittee on Water Resources and Environment. He sits on the subcommittee.

The meeting subject is "Agency Budgets and Priorities for FY 2009."

Congressmen talking about agency budgets usually have the undivided attention of the relevant agency heads. :)

For updates, including the next NIBW Community Involvement Group (CIG) meeting time/place, contact the EPA's Vicki Rosen at rosen.vicki[at]epa.gov to be added to the email alert list.

Where's John Shadegg?

In the many articles and blog posts regarding the water contamination problems in Scottsdale and Paradise Valley, many people have been quoted, from spokespeople for the various agencies and companies involved, affected residents, and even elected officials.

Congressman Harry Mitchell (D-AZ5) has gone so far as to directly contact senior EPA officials to express his concerns with the repeated problems this particular treatement facility (MRTF).

There's a limit to what a Congressman can do here, directly anyway, but what he can do is bring to bear a level of pressure and scrutiny that a member of the general public cannot.

And two Congressmen? Twice as much pressure and scrutiny.

So why hasn't John Shadegg (R-AZ3) brought his influence to bear?

I'm sure some readers are asking "Why should Shadegg get involved? It's Mitchell's district."

Well, that's only partially true. A number of the affected customers are in Scottsdale, and that *is* in Mitchell's district.

However, the bulk of the folks who can't drink their tap water are in Paradise Valley, which is in Shadegg's district.

See the southeastern portion of this district map of Shadegg's CD3, courtesy the Maricopa County Recorder's Office.


So I ask again - Where's John Shadegg?


I know Shadegg markets himself as a "laissez-faire, Reagan-style" Republican, but who knew that "laissez-faire" was French for "let them drink poison"??

Contamination levels down, but tap water usage ban remains in effect

The Arizona Republic has the details -
A ban on drinking tap water remains in effect indefinitely for nearly 5,000 Paradise Valley and Scottsdale customers of Arizona American Water while the company works with government health officials to test water samples for a potentially toxic solvent.

The ban, which began Wednesday, urges customers not to drink tap water or use it to prepare food.

Arizona American's initial warning was to expire at 5 p.m. Friday but now is indefinite.

{snip}

After the problem was detected, a test of the water showed the level to be 22 parts per billion. 5 ppb is the maximum contaminant level allowed.

{snip}

Thursday, it had dropped to 1.9 ppb, within acceptable levels, but more checks of the system are needed.

Read the complete article (linked above) for more details, but to summarize - the affected customers in Scottsdale and Paradise Valley still shouldn't use their tap water for drinking or food preparation.

Arizona American Water's latest (18 January 2008) press release is here.

Arizona state government FAQ page on this is here.

Edit to add:

There is a blog, The TCE Blog, that is dedicated to publicizing the effects of TCE. If you are interested in learning more about TCE, it's worth a read. It's written by Neil Fischbein, who once lived in a town with a water supply that was contaminated with TCE.

End edit.

Friday, January 18, 2008

Treatment facility shut down; investigation continuing

Vicki Rosen, the EPA's Community Involvement Coordinator, sent out another email today with more info concerning this week's drinking water contamination incident in Scottsdale and Paradise Valley.

From the email -
Hello CIG,

I learned a few more bits of information regarding the failure(s) at the MRTF. Specifically, this deals with the legal relationships between EPA, the State of Arizona, the County, the Participating Companies (PCs) and the AZ American Water Co.

EPA and the State of Arizona signed a Consent Decree (CD) with the PCs, not the water company. The PCs are responsible for extracting and treating groundwater contaminated with TCE. The PCs chose the water company to do this, but the PCs are not responsible for the operation & maintenance of the plant. EPA has no direct authority over the water company under the CD.

The AZ American Water Co. is subject to the Safe Drinking Water Act (SDWA) which EPA has delegated to the State and the State has delegated to the County. All three entities (fed, state, county) may take enforcement action against the water company. The PCs are not subject to the SDWA.

She went on to explain that the affected treatment facility (Miller Road Treatment Facility, or MRTF) has been shut down until further notice while an investigation is conducted. It will not be brought back online until the various regulatory agencies involved (federal, state, and local) believe that the plant will be operated safely.

In addition, depending on the outcome of the investigation, the operator, Arizona American Water, and the "PCs", or participating companies (Motorola, Siemans, and GlaxoSmithKline) could face financial penalties arising from the incident.

Note: The PCs are the companies responsible for the groundwater contamination, either because they dumped the solvents improperly, or they acquired the companies that did.

Later!

Thursday, January 17, 2008

Signs of improvement in Scottsdale/P.V. water contamination levels

Really quick update on the water contamination issue affecting Paradise Valley and parts of Scottsdale -

According to a news report on Channel 12's ten o'clock news, test results show that the TCE contamination levels are down to acceptable levels, however, customers shouldn't drink or prepare food with tap water until they have been told by EPA, state, and Arizona America Water officials that the tap water is safe for consumption.

The system still needs to be flushed.

Channel 12's report from their 5 o'clock news - Water company leaked contaminated water before (no mention of test results in this particular report)

Arizona American Water's press release of 17 January here.

Update on the contaminated water in Scottsdale and P.V.

Edit to update the update:

As stated toward the end of Ms. Rosen's email, Congressman Mitchell *was* briefed by the EPA on this matter and learned the following -

- TCE levels were four times the maximum contaminant level (approximately 20 parts per billion; 5 ppb is the maximum contaminant level), and

- Arizona American Water Co. customers in Scottsdale and Paradise Valley may have been exposed to those levels for up to 16 hours.

After learning these facts, Mitchell said “I have urged the EPA to conduct a full investigation. This is the second TCE incident at the same facility in three months. That’s not normal, and that’s not acceptable.”

Stayed tuned for more updates...

End edit...

Vicki Rosen, the EPA's Community Involvement Coordinator for the North Indian Bend Wash Superfund site just sent out this email to the NIBW Community Involvement Group (CIG). It has some of the details on what happened at the treatment facility in Scottsdale.

The email -
Hello CIG members,

You may have already read about this week's failure at the MRTF in the newspapers, but this note is to let you know what EPA knows so far about what happened.

Yesterday (Wed. Jan. 16), Jamey received a call from Dennis Shirley, consultant to the Participating Companies (PCs), advising that there had been another release. Jamey immediately informed all the appropriate people at EPA, but it was late in the day so that's why this message wasn't sent sooner.

This is what we got from Dennis:

The release was discovered yesterday by Arizona American Water at 6:30 am. A blower on Tower 3 (which treats water from well PCX-1) had shut off. That shutoff could have happened as early as the day before (Tues, Jan. 15) at 2:30 pm. There may have been 16 hours when untreated water entered the system.

Athough controls were supposed to be in place that would shut down the system in such an event, this did not happen. Untreated water containing TCE was discharged into the drinking water system. Sampling has found that levels of TCE at approximately 20 parts per billion (ppb) were distributed into the system. Sampling continues at the point of entry and throughout the system.

The MRTF was immediately shut down as soon as the failure was discovered. It is currently not operating.

AZ American Water and the PCs went into response mode and notified all customers who would have gotten that water; this was done through a reverse-911 system of phone calls to each household telling people to not drink the water. People were also told that free bottled water would be available at a particular location.

Top managers at AZ American Water have supposedly already briefed Congressman Harry Mitchell directly.

This is what we know so far. EPA is consulting with a number of parties to assess the situation and what should be done. In the meantime, almost all of our NIBW team is out of the office until at least next Tues (Jan. 22). Jamey is spending time with his brand new baby boy (their first), so it may be a while before you hear directly from him. I'm actually out of the office today having just had minor surgery, and I will not be in tomorrow either. If I get any emails from any of you, you may not get a response until next week. Monday is a federal holiday.

I will be back in touch with everyone as we learn more. We will also start to look at when we can get together in person to discuss these important issues.

Vicki

Note: I've got a call out to AZ American Water, but since my workweek starts tomorrow, I may not be able to follow up until Monday (or Tuesday because of the holiday.) Check the news, the City of Scottsdale's website, the Town of Paradise Valley's website, or AZ American Water's website for updates.

Later!

Harry Mitchell contacts the EPA regarding the latest TCE/drinking water issue in Scottsdale

The letter that Congressman Mitchell has sent to Wayne Nastri, EPA Regional Administrator in San Francisco (which covers AZ) [typo corrected by me]:
Mr. Wayne Nastri
Regional Administrator
Environmental Protection Agency
75 Hawthorne Street
San Francisco, CA 94105-3901

Dear Regional Administrator Nastri:

I am seriously concerned about the continued failure to protect against the emission of trichloroethylene (TCE), a suspected cancer causing chemical, into the drinking water that serves portions of Scottsdale.

According to local media reports, residents were alerted yesterday about a malfunction at a water-treatment plant on Tuesday, January 15, 200[8] that may have sent elevated levels of TCE into certain drinking water supplies.

I first brought the TCE emission issue to your attention in November, when, after a previous TCE emission, the EPA failed to notify the public until weeks afterwards.

You assured me then, both by letter and by phone, that steps were being taken to guard against TCE emissions. Attached, for your convenience, are copies of our previous correspondence.

I would appreciate an opportunity to speak with you about this by phone as soon as possible.

Thank you for your prompt attention.

Sincerely,

Harry E. Mitchell
Member of Congress

Note: the text of Harry Mitchell's earlier letter can be found here.

Tuesday, January 15, 2008

IT's official - the American justice system is a wholly-owned subsidiary of mega-corps

....the only thing that has changed is that they aren't even trying to hide it any longer...

Average Americans buy their houses on an installment plan, one monthly mortgage payment at a time. That way, the near-term financial pain is lessened while they invest for their long-term financial security.

Large corporations have learned the lesson - they buy judges one dividend payout or stock split at a time. That way, almost nobody notices the ongoing (and ever-growing) mortgaging of the justice system as they invest for *their* long-term financial security.

From AP via Yahoo! News (emphasis mine) -
Conflict of interest tanks worker's case

By PAUL ELIAS, Associated Press Writer Mon Jan 14, 6:15 PM ET

SAN FRANCISCO - For years, Braxton Berkley was exposed to chemicals while helping build top-secret military planes at Lockheed Martin's storied Skunk Works plant. He says those chemicals made him ill — but his case reached a dead end at the state's highest court.

The California Supreme Court has refused to hear his appeal not on legal merits, but because four of the seven justices cited a conflict of interest because they controlled stock in oil companies that provided some of the solvents at issue in the case.

According to the article, because the case is a state-level one, with no federal issues to be resolved, there is no higher court available for the Mr. Berkley and the other Lockheed Martin workers to appeal to.

I'd argue that the utter corruption of a state's supreme court *must* be a federal issue, but what is the likelihood of finding a federal court that won't cite the same "conflict of interest" to deny the workers a fair hearing?

To be fair to the judges involved, because of the method used, it's possible that they noticed the purchase of their loyalty by the oil companies as much as a house would notice the purchase of its shelter by the average American.

A question for readers: I've been having trouble finding out exactly what chemical solvents the Lockheed Martin workers were suing over, and if they were the same as (or similar to) the chemicals that contaminate the North Indian Bend Wash Superfund site.

Anybody have any ideas in this regard? Thanks in advance...

Later!

Monday, January 07, 2008

Update on contaminated drinking water in Scottsdale

Edit on 1/17/2008 to add: For those readers looking for info on the January 2008 incident affecting drinking water in parts of Scottsdale and Paradise Valley, my post on that is here. That post includes links to news reports, the City of Scottsdale's press release on the subject (with a link to a map of the affected area, and a link to Arizona American Water's press release.

End edit...

In the wake of the surprise announcement in November that "incompletely remediated" (aka - insufficiently treated) groundwater entered the drinking water supply in Scottsdale, there was a lot of activity to address the biggest concerns arising from the announcement - the contaminated drinking water itself, and the fact that after the test sample was taken, it took nearly a month to notify the residents of the North Indian Bend Wash Superfund site.

Earlier today, Vicki Rosen, Community Involvement Coordinator at the EPA, sent out the following email update of the situation -
Hello NIBW CIG,

Happy New Year to you all.

As those of you who attended the November meeting will undoubtedly remember, the relaying of information about the recent short-term problem at the Miller Road Treatment Facility (MRTF) drew much concern.

We realize, of course, that it wasn't just that some water did not get the treatment it should have, but also that the process of reporting the situation and then communicating as such with our interested citizens could have been better.

Currently, our NIBW team is reviewing the policy of how all this should work and seeing how to make the communication better. We are also reviewing what additional safeguards might be needed at the plant to lessen the chance such an occurrance will happen in the future. Attached are two letters on the MRTF issue: the first from Congressman Harry Mitchell to EPA Administrator Stephen Johnson, and the second a response from EPA Regional Administrator Wayne Nastri.

Also attached is a copy of the final Communication Plan developed by the Participating Companies and approved by EPA. A draft of this plan was presented to the CIG and discussed at a CIG meeting in 2003. The final plan incorporates the community input received at the time. The actual approval date of July 11, 2007 is later because this document was part of a larger submittal requirement for the Remedial Design / RemedialAction Work Plan. That is why this final Communication Plan was not forwarded to the CIG before now. But as I've stated, the CIG saw theearlier version several years ago. The final plan is now on our NIBW website.

Jamey and I will be getting back to you regarding any changes to the processes of sampling, analysis, reporting, etc., and we'll arrange for another CIG meeting to discuss this in detail. We want you to know that we take any breakdown in the NIBW cleanup systems seriously and we are committed to sharing information in a timely manner and discussing the what, why and wherefore with our interested community members.

Thank you for your understanding and patience and also for caring about your community's environment.

Vicki
The text of Harry Mitchell's letter to the administrator of the EPA is here.

The EPA's response, via Regional Administrator Nastri, can be summed up thusly - "the public wasn't in any danger, we're looking into it, and promise it won't happen again." If you want a copy of the letter, contact me at cpmaz[at]yahoo.com and I'll be happy to forward the email to you, with the attachments, or let Vicki know at vicki.rosen[at]epa.gov and she'll add you to the NIBW mailing list.

The NIBW Communication Plan at the link.

Previous posts here and here.

Later!

Saturday, November 17, 2007

Harry Mitchell's response to last night's drinking water contamination announcement

Quick update on last night's post concerning the announcement that one of the groundwater treatment stations in Scottsdale failed to do its job for eight days last month -

As expected, Ari Cohn of the EV Tribune did write a story about the meeting; the link is here.

A follow-up story, detailing the City of Scottsdale's assurances that the contaminated water was limited to a private water supply and never entered the city's water supply, is here.

Congressman Harry Mitchell and his office responded quickly, sending a letter to the administrator of the EPA expressing the Congressman's concerns and requesting a meeting to discuss the incident, its handling by the EPA, and what it says about the EPA's priorities.

The letter to the EPA administrator -

November 16, 2007

The Honorable Stephen L. Johnson
Administrator
Environment Protection Agency
1200 Pennsylvania Avenue, NW
Washington, DC 20460

Dear Administrator Johnson:

I am deeply concerned about last night's disclosure by the Environmental Protection Agency (EPA) that water from a Scottsdale Superfund site with nearly double the maximum legal limit of trichloroethylene (TCE), a suspected-cancer causing chemical, may have entered the city's drinking water supply for a period of eight days last month.

The disclosure raises serious questions, not only about the emission, but about why the public was not informed about it until weeks after the event. Notice after exposure is inadequate and unacceptable. When the safety of drinking water is put at risk, the public has a right to know.

At last evening's Community Involvement Group of the North Indian Bend Wash Superfund Site meeting, where the contamination levels were revealed, the information was delivered as a postscript, after several decidedly less important matters had been discussed. I hope this does not reflect the priority EPA assigns to potential exposure to TCE.

I would appreciate an opportunity to meet with you or a member of your regional staff at the earliest possible convenience.

Thank you for your consideration.

Sincerely,

Harry E. Mitchell
Member of Congress

OK, I'm going to sound like a partisan hack here (perhaps only because I am one :)) ), but does anyone think that if a corporatist like John Shadegg or Jeff Flake was the Congressman for south Scottsdale, that there would have been a response anywhere near this quick or constituent-centered?

With a couple of minor changes during the last redistricting cycle, Scottsdale would be inundated with press releases bemoaning how EPA regulations suppress profit, not expressing concern for the health hazards faced by the residents of the district.

Side note to the coverage of the meeting -

Read the Trib's coverage of the meeting at the links above, then read the AZ Republic's here.

The AZ Rep article at the link, credited to Diana Balazs, is actually a slight improvement over its original coverage, credited to "staff and wire reports."

"Staff and wire reports" was a euphemism for "we re-edited the Trib's story."

They've pulled that one off of their website, but the article left up is written in a "damn, were we caught with our pants down or what?" style - the Rep didn't have anyone at the meeting and their article consists of a quote from a press release from Arizona American Water and a rehash of the history of the North Indian Bend Wash Superfund site.

The once-mighty Arizona Republic scooped by the lowly Tribune? LOL.

Later!

Thursday, November 15, 2007

If you visit Scottsdale, don't drink the water.

Edit on 1/17/2008 to add: For those readers looking for info on the January 2008 incident affecting drinking water in parts of Scottsdale and Paradise Valley, my post on that is here. That post includes links to news reports, the City of Scottsdale's press release on the subject (with a link to a map of the affected area, and a link to Arizona American Water's press release.

End edit...

Be warned, the following is a totally Scottsdale-centric post...

The post was almost titled "Want a sure way to tick people off? Mess with their drinking water..."


You know, tonight there were four events/meetings that I could have attended - three were a D17 Dems movie, a D8 Dems healthcare and legislation program, and a meeting of the Community Council of South Scottsdale. I chose the fourth, and am very glad that I did so.

A couple of weeks ago, I wrote a post about a then-upcoming EPA community involvement meeting concerning, among other things, a request by Motorola to remove carbon filters from a Superfund cleanup site in south Scottsdale.

That meeting was tonight.

First, the good news - in a decision that was just made this week, the EPA has decided not to allow Motorola to remove the carbon filters.

Now, the bad news - halfway through the meeting, it was announced that on October 15th and for a period of approximately 8 days total, there was an incident of "incomplete mediation" at the Miller Road Treatment Facility (located at approximately Miller Road and McDonald in Scottsdale).

"Incomplete mediation" is a euphemism for "the TCE in the water wasn't cleaned to federal clean water standards of 5 parts per billion (ppb)."

That announcement turned what had been an informative but peaceful meeting until that point into one filled with angry outbursts and recriminations. One common theme in the comments from the public was the lack of communication with the public about the problem. Most of the folks there were under the understanding that the general public would be notified of such issues within 24 - 72 hours.

The basic story, as explained in the meeting was this -

Last month, the operators of the treatment facility were inspecting the primary treatment tower at the facility in preparation for some preventative maintenance work next year, so the water flow was switched to another tower at the facility. The facility takes a sample each week and sends it out to a lab to be tested; on Monday, October 15, that weekly sample was taken from the output of the alternate tower.

A week later, the water flow was switched back to the main tower, before the sample results were returned.

Under normal conditions, that sample is tested on Monday of a given week with the results getting returned to the operator by Friday. Any abnormal/unacceptable results are then forwarded to the EPA and the public is notified.

However, that week, the lab that normally does the testing had an equipment problem and had to forward the sample to another lab. Those lab results were returned last Wednesday, the results were verified and with the holiday weekend and an EPA conference in the way, the pertinent EPA people weren't notified until yesterday.

The public received its notice at the meeting.

At one point, the local general manager for the operator, Arizona American Water, rose to state that while the water left the TCE treatment facility with higher than acceptable levels (9 ppb actual versus 5 ppb acceptable), the water was combined with other, already clean, water at an arsenic treatement facility and was hence diluted to acceptable levels before it entered the drinking water supply.


Needless to say, but no one at the meeting bought any of it - neither the excuses for the delay in public notification, nor the assurances that the water was safe anyway.


For the next 20 - 30 minutes, the presenters were faced with sharp questions and sharper comments (and at least one F-bomb) from the audience; most of the loudest complaints were with the lack of communication with the public, in regards to both this current incident and historically.

Finally, though, the organizers of the meeting, including Vicki Rosen of the EPA, were able to move the discussion onward to the rest of the agenda.

People were still a little ticked though. :))

When asked afterward, Dennis Shirley of Errol Montgomery and Associates, cleanup consultants to the parties responsible for the TCE contamination in the area - Motorola, Siemens, and GlaxoSmithKline) stated that he didn't know what the problem was with the alternate treatment tower and that the investigation was ongoing.

When he was asked how long before the results of that investigation would be known, he declined to be specific; when pressed, he said "probably before the end of the year."

These community involvement meeting are normally on an annual schedule, but many attendees, including me, asked/advised Ms. Rosen that perhaps one should be held sooner, perhaps when the facts about the "incomplete remediation" incident are gathered. She agreed, though one won't be held before the end of the year.

I'll update when the investigation results are available and/or a new meeting date is set.


The uproar over treatment facility failure overshadowed what was a very informative meeting. Besides the EPA, a number of government agencies were represented at the meeting, including the Arizona Department of Environmental Quality (ADEQ), Arizona Department of Health Services (ADHS), the federal Agency for Toxic Substances and Disease Registry (ATSDR), City of Scottsdale, and Maricopa County Air Quality Department (MCAQD).

BTW - for those of you familiar with Scottsdale, the North Indian Bend Wash Superfund site is roughly the area bordered by Pima Road on the east, Scottsdale Road on the west, Chaparral Road on the north and the Salt River on the south.

BTW2 - I live in the NIBW site. :(

I won't try to recap all of the information presented tonight (I couldn't even if I wanted to - I don't take notes fast enough to cover all of that material), but here are some informative links -

EPA's North Indian Bend Wash Superfund (NIBW) site info page

City of Scottsdale's NIBW page

A 2005 EPA-produced fact sheet here

A 1992 Phoenix New Times story on the whole issue here

A National Academies of Science report on the human health risks of TCE here (there are a *lot* of reports on this; just type "TCE" into any search engine)

Other notes from the meeting:

...Congressman Harry Mitchell's office was represented (not presenting, just observing) by Reed Adamson; don't be surprised if the Congressman weighs in on some of the issues aired tonight, such as the lack of public communication.

...Ari Cohn and a photographer from the East Valley Tribune (apologies to her for not getting her name) were also at the meeting; expect a more complete meeting recap, with pics, from the Trib on Friday or Saturday (depending on deadlines).

...Perhaps preparing for ongoing/impending litigation, Motorola had a camerman recording the meeting; perhaps not-so-coincidentally, Motorola's rep at the meeting, Terry Lockwood, was mostly silent.

Have a good weekend!