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HomeMy WebLinkAboutNC0003719_Staff Comments_20050217NPDES DOCUMENT SCANNING COVER SHEET NC0003719 Cedar Creek site WWTP NPDES Permit: Document Type: Permit Issuance Wasteload Allocation Authorization to Construct (AtC) Permit Modification Complete File - Historical Engineering Alternatives (EAA) Correspondence Owner Name Change (Staff Comments Instream Assessment (67b) Speculative Limits Environmental Assessment (EA) Document Date: February 17, 2005 This document is printed on reuse paper-1g:iore any content on the reiFerse side Flow nc asurement Subject: Flow measurement From: Susan Wilson <susan.a.wilson@ncmail.net> Date: Thu, 17 Feb 2005 14:57:59 -0500 To: jrichardson@dakamericas.com CC: Belinda Henson <Belinda.Henson@ncmail.net> Jeff, I'll get something more formal to you soon - but in the meantime, just wanted to let you know we have no problem with using the mag meter on the flow diverted to PWC and subtracting that from the Parshall flume flow at the influent to the contact chamber (to get a value for the final effluent flow to the river). I was hesitant at first because Paul had expressed some concerns. However, I spoke with him about it again today (now that he's working up here) and showed him your diagram, etc. (I'm copying Belinda Henson so that she will be aware - she's acting supervisor in Fayetteville). Just make sure both the Parshall flume and the mag meter are calibrated at least annually (as required in the permit). * This decision has no bearing on the final decision with regard to the EAA (I have not yet started looking at the EAA, but will begin today and continue tomorrow - although I remember saying that last week as well!). Susan 1 of 1. 2/17/2005 3:12 PM cvliv-Z-10z ,61F Puy Oo 2 �ii.cclwFr rt,ex Ogutr Ft -Ow Met- = -• Rem DAK Americas FIBERS. MONOMERS & RESINS December 15, 2004 Ms. Susan Wilson Point Source Branch North Carolina Division of Water Quality 1617 Mail Service Center Raleigh, North Carolina 27699-1617 Re: Effluent Flow Reporting Modification DAK Resins, LLC Cuml3erland County NPDES Permit No. NC0003719 Dear Ms. Wilson: As discussed in our phone conversation Tuesday 12/14/04, DAK Americas is requesting to modify our effluent flow reporting procedures. As you are aware DAK Americas has installed a pumping station and pipeline to a Fayetteville PWC sump located on the west side of our facility. The pump station is located in our contact chamber after the Parshall flume. DAK Americas is requesting to install a Rosemont magnetic flow tube model no. 8711 (see Attachment 1) in a 4 inch section of pipe going to the PWC sump (see Attachment 2 for details) to accurately measure flow. We are proposing that during the daily flow monitoring the measurement taken from the new flow meter is subtracted from our effluent flow meter to accurately record actual daily flow discharged out the permitted 002 outfall. Please let us know what additional steps need to be taken to move forward with this request. If you have any questions or would like to discuss in further detail, please do not hesitate to contact me at 910-371-5082 or 910-262-2288. Sincerely, /Jeff Richardson v;. DAK Americas Attachments Cc: Penny Mahoney — DAK Americas Cape Fear Site Stanley Carter — DAK Americas Cedar Creek Site Paul Rawls, NCDWQ Fayetteville Regional Office File Room DAK Americas LLC 3500 Daniels Road, N.E. • Leland, NC 28451 1-877-432-2766 www.dakamericas.com 0 Attachment 7 CLIENT: DAK AMERICA LOCATION: Cedar Creek Facility • PROJECT TITLE: PROJECT NUMBER: 108544 PREPARED BY: PERIGON, PA. MAGNETIC FLOWMETERS SHEET 1 OF 1 SPEC NO 108544-01 REV A NO BY CHK APPR DATE REVISION PERIGON NO 108544 DATE 12/17/04 A DRY 12/17/04 COMMENTS PURCHASE ORDER NO REQUISITION NO General 1 Tag No. la P&ID No.: 2 Service WASTE WATER FLOW 3 Line No.. 3a Line Size/Sched. No. 6" REDUCED TO 4"!- Meter . 4 Body Style 0 Wafer 0 Flanged 5 *Size 4" 6 End Connections WAFER 150# FLANGELESS 7 'Temp Rating I"Pres Rating -20 TO 300°F 1230 PSI @, 300°F 8 'Adj Flow Rate Range 37 -1,190 GPM 9 *Pressure Drop @ Op Max Ftow 10 11 Materials *Casing WELDED STEEL 12 `Tube 304 SST 13 *Flanges WAFER 14 'Liner ETFE TEFZEL 15 'Electrodes 316L SST (NO GROUNDING) 16 "Grounding Rings 316E SST 17 'Straight Pipe Requirements 18 'Excitation 19 Certifications Required FM FOR CL I, DIV 2 NON-FLAMMABLE LIQUIDS Electronics 20 Features ElSmart ❑ Fieidbus 21 Mounting Type ❑ Integrai Q Remote 22 Mounting 2" PIPE 23 Power Supply 115 VAC +1- 10%, 50 - 60 HZ 24 Output 4 - 20 maDC (See Note 3) 25 "Conduit Entry / 'Enclosure BOTTOM 3/4" 14 NPT / - 26 System Accuracy +/- 0.5% OF RATE 27 Ambient Temperature Limits -30 to 150°F 28 Certifications Required FM CLASS I, DIV 2 29 Smart Calibration Method LOCAL OPERATOR INTERFACE 30 Sensor Cable COMBINATION SIGNAL AND COIL DRIVE 31 Cable No. BELDEN 9368 OR ROSEMONT P/N 08712-0750-0001 Service 32 Fluid WASTE WATER 33 Flow Rate: Max/Min 400 GPM 34 Normal Flow Flow Units 250 GPM 35 Calibrated Ftow Range 50 - 500 GPM (NOTE 2) 36 Oper Pres/Temp 37 Max Pres/Temp 38 Operating Viscosity 39 Minimum Fluid Conductivity 40 41 Area Electrical Classification ORDINARY(GEN PURPOSE) 42 Manufacturer ROSEMOUNT 43 'Flowtube Model Number 8711TSA040R1N0G1 44 'Transmitter Model Number 8712DR12N5M4 45 Mounting Kit ASME B16.5, ANSI CLASS 150 46 Vendor * Information supplied by manufacturer unless already specified. NOTES: 1. Attach stainless steel tag with tag numbers engraved. 2. Minimum flow range setting is 37 GPM. 3. Internally jumpered, extemally or intemall powered, 5 - 24 VDC, 1000 Ohm toad. I:Engineertng/Projects/108544/Doc/ISA/108544 (Mag Flow Meter).xis Attachment 2 Proposed Flowmeter New Lift Station Contact Chamber To Fayetteville PWC 18" Inlet To Cape Fear River Parshall Flume DAK CEDAR CREEK CONTACT CHAMBER DISCHARGE SCHEMATIC