RE North Lake samplesKeith,
Please confirm that you received this. I sent it yesterday morning,
but for some reason it did not go through.
Michael
From: Suarez, Michael
Sent: Tuesday, May 20, 2014 10:07 AM
To: Keith Marvin
Cc: Kenneth Griffin; John Rutledge
Subject: Re: North Lake samples
Keith,
Sorry for the delay.
It will cost an additional $5225 per day to run the pump starting on
May 28th. Please confirm you would like us to reduce the pumping rate.
On May 19, 2014, at 8:00 AM, "Keith Marvin" <KMarvin@coppelltx.gov
<mailto:KMarvin@coppelltx.gov> > wrote:
Michael,
I have not gotten a response to this request. We are going to
have to address the concerns of DWU.
Please advise the status of our pumping, and the impact of a
reduced pumping rate.
Keith Marvin, P.E.
Assistant Director of Public Works
Engineering Department
City of Coppell, TX
www.coppelltx.gov <http://www.coppelltx.gov>
972-304-3681 (office)
<image002.png> <http://www.coppelltx.gov/>
<image003.png>
<https://www.facebook.com/pages/City-of-Coppell-TX-Municipal-Government/
324357528624> <image004.png> <https://twitter.com/CityofCoppell>
<image005.png> <http://www.youtube.com/CityOfCoppellTX> <image006.png>
<http://www.coppelltx.gov/ecocoppell-522.html>
Please take our customer service survey
From: Keith Marvin
Sent: Thursday, May 15, 2014 9:34 AM
To: Michael Suarez
Cc: Kenneth Griffin; 'John Rutledge'
Subject: RE: North Lake samples
Michael,
Can you give me an estimated cost to cut the pumping rate in
half and continue at half rate to 478?
Thanks.
Keith
From: John Rutledge [mailto:JLR@freese.com]
Sent: Thursday, May 15, 2014 9:21 AM
To: Keith Marvin; Michael Suarez
Subject: FW: North Lake samples
I received this from Ken. I replied that we would let him know
what adjustments are made. From looking at the data, it’s clear that the
North Lake water is having an impact. I think we’ve been OK the last
couple days because of the high runoff, but flows are back down to
normal and the pumping is roughly half the flow, I would recommend that
discharges be reduced 50% to accommodate and we then discuss the
following options:
1. Ride out at half the pumping, which would take about 4
weeks to get to 478 instead of the 2. Don’t know the impact to each
party.
2. Continue at half rate until a “cost neutral” point. 2
weeks would probably be 483. 3 weeks 481. Have to discuss where a cost
neutral point is since lease goes up and fuel goes down. This should
also take into account whether it required a second mobilization or not.
3. Just pump to about 485 or less, similar to original plan
and release the water (with proper warnings) through the structure. Not
likely to be acceptable to the Billingsleys, but a realistic negotiating
point.
For both the first two, we would want to take advantage of any
higher flows with additional rain to ramp up the pumping. We could
develop an estimate of equivalent mixing rates.
If it helps, I’ve included links to a couple of a couple USGS
plots. The Carrollton one is upstream from the release and the Spur 348
is downstream. We can track these in real time.
http://waterdata.usgs.gov/nwisweb/graph?agency_cd=USGS&site_no=08055560&
parm_cd=00060&period=7#.U3TFG5BLdSE.email
http://waterdata.usgs.gov/nwisweb/graph?agency_cd=USGS&site_no=08055500&
parm_cd=00060&period=7#.U3TFXpknLi0.email
Link to gauges. Two above are listed in the section for the
Trinity.
http://waterdata.usgs.gov/tx/nwis/current/?type=flow.
I will be out of town most of today and all of tomorrow for my
son’s graduation, but will be available sporadically on my cell and by
email.
Thanks,
John
John Rutledge
Freese and Nichols, Inc.
4055 International plaza, St 200
Fort Worth, TX 76109
(817) 735-7284
jlr@freese.com <mailto:jlr@freese.com>
<image007.jpg>
From: Delregno, Kenneth
[mailto:kenneth.delregno@dallascityhall.com]
Sent: Thursday, May 15, 2014 8:15 AM
To: John Rutledge
Subject: North Lake samples
Attached are recent sample results from our WQ section. The
aluminum concentration exceeds the acute criteria for the Elm Fork basin
(0.991 ppm). As noted before, the chlorides exceed the stream standards.
I would suggest that the release be reduced to alleviate the downstream
impacts.
Thanks.
Ken DelRegno
Assistant Director
Water Production
Dallas Water Utilities
Please consider the environment before printing this message.
This electronic mail message is intended exclusively for the
individual or entity to which it is addressed. This message, together
with any attachment, may contain the sender's organization's
confidential and privileged information. The recipient is hereby
notified to treat the information as confidential and privileged and to
not disclose or use the information except as authorized by sender's
organization. Any unauthorized review, printing, retention, copying,
disclosure, distribution, retransmission, dissemination or other use of,
or taking of any action in reliance upon, this information by persons or
entities other than the intended recipient is prohibited. If you
received this message in error, please immediately contact the sender by
reply email and delete all copies of the material from any computer.
Thank you for your cooperation.
1CE@walshgroup.com>
In-Reply-To: <9F45BA5B-4CC8-4CC9-AB05-132E738C61CE@walshgroup.com>
Accept-Language: en-US
Content-Language: en-US
X-MS-Has-Attach:
X-MS-TNEF-Correlator:
x-originating-ip: [70.196.9.26]
Content-Type: multipart/alternative;
boundary="_000_3D56A1680D8FB343853B6BC0D3F7CA52012456D492exchmbs2walsh_"
MIME-Version: 1.0
Return-Path: msuarez@walshgroup.com
X-EOPAttributedMessage: 0
X-Forefront-Antispam-Report: CIP:206.104.177.181;CTRY:US;IPV:NLI;EFV:NLI;SFV:NSPM;SFS:(438001)(164054003)(124975003)(377454003)(199002)(189002)(51164003)(24454002)(19300405004)(64706001)(21056001)(53
416003)(74502001)(74662001)(20776003)(33656001)(85852003)(71186001)(92726001)(79102001)(92566001)(16796002)(2656002)(77982001)(31966008)(55846006)(512874002)(19625215002)(81342001)(84326002)(87836001
)(81542001)(6806004)(4396001)(15974865002)(16236675002)(83322001)(46102001)(86362001)(99396002)(16601075003)(54356999)(15202345003)(19580395003)(44976005)(19580405001)(80022001)(66066001)(83072002)(1
5975445006)(76482001)(76176999)(50986999);DIR:INB;SFP:;SCL:1;SRVR:BY2PR09MB125;H:exchedge.walshgroup.com;FPR:;MLV:sfv;PTR:exchedge.walshgroup.com;A:1;MX:1;LANG:en;
Received-SPF: Pass (: domain of walshgroup.com designates 206.104.177.181 as
permitted sender) receiver=; client-ip=206.104.177.181;
helo=exchedge.walshgroup.com;
Authentication-Results: spf=pass (sender IP is 206.104.177.181)
smtp.mailfrom=msuarez@walshgroup.com;
X-MS-Exchange-Organization-AuthSource: XCOPP.coppell.city
X-MS-Exchange-Organization-AuthAs: Anonymous