Project No.: 

### 0317.0 2 .005.510 Page 1 of 3

Project Name: 

### DMR20 1 3 

## CBI?

Yes

No TELEPHONE CALL RECOR D Incoming Outgoing Date: 

### 12/11 /1 4 Time: 

### 10:00 am

pm

Company Name: 

### Nyrstar Clarksville, Inc. ERG Staff Name: 

### Kimberly Bartell

Contact Name: 

### William (Chad) Crocker Contact Phone Number: 

### (931) 552

- 4200 ext. 3277

General Subject: 

### 20 1 3 DMR Fluoride Discharges



## TOPICS DISCUSSED AND ACTION TAKEN

On December 11, 2014 I called Chad Crocker and left a message.

On December 19, Mr. Crocker returned my call and requested that I follow up with our questions via email. He stated that fluoride is measured once a month and depends on flow. It fluctuates due to batch and continuous processes. Please see attached email c orrespondence.

### Email Communication with Nyrstar:

To: Kimberly Bartell

From: William Crocker

Date: 12/23/14 4:38 PM Subject: RE: 2013 DMR Clarification for Fluoride Discharges

Ms. Bartell,

First off, I apologize for not responding back on Monday, I was unexpectedly out of the office. However, I have looked through the spreadsheet that you sent to me and confirm that the fluoride data on the spreadsheet matches the values that

were submitted on the netDMR and are accurate based on the samples collected at this site. Fluoride is listed on our permit as a once per month analysis. It appears that for the months of May, October, and December 2013 the fluoride

concentration as measured at our la b was higher on those particular samples than what was seen in the other months. This

once

- per

- month sample may not be indicative of the entire month and would only be valid for the 24

- hour period that the composite sample was collected. Whereas the othe r parameters reported for Outfall 001 are averages of multiple samples through the month. Let me know if you have any other questions. Thanks.

Chad Crocker

Senior Environmental Advisor Nyrstar

D: + 1 931

- 552

- 4200 x. 3277

F: + 1 931

- 221

- 3215 William.Crocker@nyrstar.com

To: William Crocker ( William.crocker@nyrstar.com ) From: Kimberly Bartell CC: Kim Wagoner, William Swietlik Date: Friday 12/19 /14 4:22M Subject: 2013 DMR Clarification for Fluoride Discharges

Dear Mr. Crocker,

Thank you for your time on the phone today. Eastern Research Group, Inc. (ERG) under EPA Contract No. EP

- C

- 12

- 021,

is e

- mailing you on EPA's behalf to request clarificat ion of 2013 discharge monitoring reports for Nyrstar in Clarksville, TN (TN0029157). Please see background information below.

EPA reviews publicly

- available DMR data to fulfill its review obligation under Section 304(b) of the Clean Water Act.

The CWA requires EPA to annually review and, if appropriate, revise its water pollution control technology

- based regulations, called "effluent limitations guidelines" or "effluent guidelines," that limit the discharge of pollutants to wat ers of the U.S. from vario us categories of industrial facilities. EPA is currently conducting its 2015 annual review of existing effluent guidelines and potential industrial guidelines which may need to be included (see http ://www.epa.gov/guide/304m/ for further information). EPA will discuss this review and the results in its 2015 Effluent Guidelines Program Plan scheduled for publication in the Federal Register sometime in 2015 or 2016. As part of the 2015 annual review, EP A is evaluating the data in discharge monitoring reports from 2013 and needs further information to complete the review.

We would like to obtain additional information on the following 2013 discharge data for Nystar. Our records show the

fluoride values in the attached spreadsheet were discharged from outfall 001. We appreciate your help in confirming if the above data are accurate, or if there are units errors in the DMR data.

Please call me at (517) 515

- 1721 if you have any questions. If you would l ike to speak directly with EPA regarding this request, you can contact William F. Swietlik of EPA's Office of Water/Engineering Analysis Division by phone at (202)

566

- 1129 or by email: swietlik.w illiam@epa.gov

.Thank you, Kimberly

----------------------------- Kimberly D. Bartell Environmental Engineer Eastern Research Group, Inc. kimberly.bartell@erg.com

Phone: 517

- 515

- 1721