Amend CSSB 2120 by adding the following new SECTION to the 
bill and renumbering subsequent SECTIONS appropriately:
	SECTION ____.  STUDY AND REPORT.  (a)  The Texas Commission 
on Environmental Quality shall conduct a study regarding the impact 
on the entire Carrizo-Wilcox aquifer of rules and plans adopted by 
groundwater conservation districts in whose boundaries the aquifer 
is located and of determinations made by groundwater conservation 
districts in connection with the joint planning process relating to 
groundwater management areas in whose boundaries the aquifer is 
located.  In conducting the study, the commission shall examine:
		(1)  whether the rules and plans adopted by each 
groundwater conservation district:
			(A)  are based on sound scientific principles;                               
			(B)  adequately conserve and protect the aquifer 
and ensure the achievement of the applicable desired future 
condition for each part of the district; and
			(C)  are likely to affect other groundwater 
conservation districts or groundwater management areas;
		(2)  whether each district is enforcing substantial 
compliance with its rules;
		(3)  whether the desired future conditions established 
under Section 36.108, Water Code, in each groundwater management 
area are reasonable and based on sound scientific principles, and 
whether the rules adopted by each district are designed to achieve 
the applicable desired future condition;
		(4)  other long-term impacts of the applicable rules 
and plans on the aquifer, taking into consideration:
			(A)  projected population and agricultural, 
municipal, and industrial demands for water from the aquifer within 
the groundwater conservation districts; and
			(B)  other appropriate factors as determined by 
commission rule; and       
		(5)  whether the presence of contaminants in the 
recharge area of the aquifer and the potential pollution of the 
aquifer are issues that should be addressed and, if so, by whom.
	(b)  The Texas Water Development Board and the Bureau of 
Economic Geology of The University of Texas at Austin shall assist 
the commission in conducting the study under this section.
	(c)  The commission may contract with any appropriate person 
to assist the commission in conducting the study under this 
section.
	(d)  Not later than December 31, 2012, the commission shall 
report the results of the study conducted under this Act to the 
governor, the lieutenant governor, the speaker of the house of 
representatives, and the standing committees in the senate and the 
house of representatives that have primary jurisdiction over 
natural resources.  The report may include the commission's 
recommendations for legislation to address any areas of concern.
	(e)  The changes in law made by (a) - (d) expire August 31, 
2013.