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	Plan A	Plan B	Plan C	Plan D	No Plan
Area of Impoundment	50 sq. mi.	30 sq. mi.	30 sq. mi.	40 sq. mi.	-
Remaining Salton Sea Area	310 sq. mi.	330 sq. mi.	330 sq. mi.	320 sq. mi.	360 sq. mi.
Dike Length
Constructed by hauling	14.6 mi.	9.9 mi.	9.9 mi.	11.3 mi.	-
Constructed by dredging	22.3 mi.	11.9 mi.	11.9 mi.	15.7 mi.	-
Total Length	36.9 mi.	21.8 mi.	21.8 mi.	27.0 mi.	-
Brine Disposal System
Capacity	-	95 ft3/s	195 ft3/s	-	-
Pipeline length	-	46.7 mi.	46.7 mi.	-	-
Number of pumping plants	-	4	4	-	-
Total pump lift	-	1,800 ft.	1,800 ft.	-	-
Fresh Water System
Number of wells	-	95	195	-	-
Depth of Wells	-	500 ft.	500 ft.	-	-
Collector pipelines, total length	-	105 mi.	152 mi.	-	-
Construction Cost	$65,000,000	$105,000,000	$141,000,000	$58,000,000
Annual Operation Cost
Adjustment phase	$416,000	$2,488,000	$4,709,000	$251,000	-
Maintenance phase	$416,000	$ 104,000	$ 104,000	$251,000	-

		Plan A	Plan B	Plan C	Plan D	No Plan
Project Performance
Length of time to return salinity to 35,000 p/m		12 years	14 years	8 years	18 years	-
National Economic Development Account
Benefits (ann. equiv.)
User benefits 1/		$3,000,000	$ 2,973,000	$ 3,396,000	$ 2,774,000
Externalities benefits2/		28,491,000	28,748,000	29,235,000	27,943,000
Total NED Benefits		$ 31,591,000	$ 31,721,000	$ 32,631,000	$ 30,717,000
Costs (ann. equiv.)
Construction & I.D.C. 3/		$ 4,540,000	$ 7,579,000	$ 10,246,000	$ 4,057,000
OM&R		389,000	1,542,000	1,999,000	235,000
Total NED Costs		$ 4,929,000	$ 9,121,000	$ 12,245,000	$ 4,292,000
Net NED Benefits		$ 26,662,000	$ 22,600,000	$ 20,286,000	$ 26,425,000
Regional Development Account
Beneficial Effects	extensive, high value		extensive, high value	extensive, high value	extensive, high value	none
Adverse Effects	none		none	none	none	substantial
Environmental Quality Account
Beneficial Effects	extensive, high value		extensive, high value	extensive, high value	extensive, high value	small, med. value
Adverse Effects	minor		minor	minor	minor	substantial
Social Well-Being Account
Beneficial Effects	very favorable		very favorable	very favorable	very favorable	none
Adverse Effects	very minor		very minor	very minor	very minor	major

^1/ Fish and wildlife and recreation benefits.
^2/ Primarily land enhancement; includes minor increased net income to local suppliers of recreation equipment.
^3/ Interest during construction.