Drinking Water Regulations

Introduction

Hoyle, Tanner & Associates, Inc. has prepared the following information to help you navigate through the various requirements of two new drinking water regulations with broad impact: the Stage 2 Disinfection Byproducts Rule (S2DBPR) and the Long Term 2 Enhanced Surface Water Treatment Rule (LT2ESWTR)

Table 1 lists important upcoming deadlines: .

Table 1 S2DBPR and LTESWTR Important Deadlines (2007 – 2010) Systems serving 10,000-49,999 people or part of a system serving 10,000 – 49,999 people
Deadline	Task Description	Regulation
October 1, 2007	Submit IDSE DBP monitoring plan (standard or specific) or submit waiver request	S2DBR
January 1, 2008	Submit Cryptosporidium (Crypto) sampling schedule or EPA notices as applicable	LT2ESWTR
April 1, 2008	Begin 24-month first round Crypto monitoring	LT2ESWTR
June 10, 2008	Submit first round of Crypto monitoring data	LT2ESWTR
October 1, 2008	Begin collecting DBP samples in accordance with approved monitoring plan	S2DBR
September 30, 2009	Complete DBP monitoring of system	S2DBR
January 1, 2010	Submit ISDE report	S2DBR
October 1, 2010	Submit filtered system's bin classification or unfiltered system's mean Crypto level	LT2ESWTR

The EPA has developed numerous compliance guides and fact sheets, some of which we have available for your convenience: