Figure: 30 TAC §290.115(c)(5)(C)

Initial Distribution System Evaluation (IDSE) Schedule
Retail population	Submit IDSE plan or waiver documentation by:^{1, 2}	Complete IDSE by:	Submit IDSE report by:³
Systems that are not part of a combined distribution system and systems that serve the largest population in the combined distribution system
100,000 or more	October 1, 2006	September 30, 2008	January 1, 2009
50,000 through 99,999	April 1, 2007	March 31, 2009	July 1, 2009
10,000 through 49,999	October 1, 2007	September 30, 2009	January 1, 2010
less than 10,000 (Community Only)	April 1, 2008	March 31, 2010	July 1, 2010
Other systems that are part of a combined distribution system:
Any population	At the same time as the system with the earliest compliance date in the combined distribution system

¹If, within 12 months after the date identified in this column, the executive director does not approve a system's IDSE plan or notify the system that review is incomplete, the IDSE plan will be considered approved. The system must implement that plan and must complete standard IDSE monitoring or a system specific study no later than the date identified in the third column.
²Waiver documentation must be submitted by the date indicated.
³If the executive director does not approve an IDSE report or notify a system that review is incomplete within three months after the IDSE report is due to be submitted, or within nine months of the date that waiver documentation must be submitted for systems receiving waivers, the submitted report or waiver documentation will be considered approved and must be implemented.