Field Office Compliance - Assistance

Assistance ID - 46811

Osceola Water Works - 310338248

2320 WEST CLAY STREET Osceola, IA 50213

Clarke County

FO 5

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Attached Files/Reports

File Name	File Type	File Date	Note

Comments

Date	Comment	Commenter
4/13/2012	From: Gastineau, Janet [DNR] Sent: Friday, April 13, 2012 12:25 PM To: 'OSCEOLAWATER DEPARTMENT' Subject: RE: odor Odor’s one of the contaminants in the national secondary drinking water regulations, all of which are contaminants with aesthetic concerns. Since they are aesthetic issues, we’re not required to adopt them as we are with the primary drinking water regulations (contaminants with health concerns). In 40 CFR 143.4, the method for Odor is listed as Method 2150B in the 18th, 19th, or 20th editions of Standard Methods for the Analysis of Water and Wastewater. The units are “Threshold Odor Number”, or TON. (The old 1983 method bible, EPA Manual for the Analysis of Water and Wastes, which many water and wastewater systems have around, had it listed as 140.1, and this is similar.) From: OSCEOLAWATER DEPARTMENT [mailto:osceolawater@wildblue.net] Sent: Thursday, April 12, 2012 9:23 AM To: Gastineau, Janet [DNR] Subject: Hi Janet, I was telling the guys we need to incorporate a odor test into our daily testing. How do we do this? Is it by what you smell or a numbering system?	JANET GASTINEAU

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