Iowa Admin. Code r. 567-52.8

Current through Register Vol. 47, No. 13, December 25, 2024

Rule 567-52.8 - Designated protected flows of streams

(1)Purpose. The protected flow is designed to protect and maintain adequate water supplies for ordinary household and livestock use; for fish and wildlife use; for recreational use; for in-stream wasteload assimilation and pollution control; for beneficial water use needs in the watershed; for preservation of aesthetic values; and for other uses of a public nature.

(2)Protected flow basis. The protected flow is based in part on statistical information contained in "Low-Flow Characteristics of Iowa Streams," (INRC Bulletin No. 9 (1958)), "Low-Flow Characteristics of Iowa Streams through 1966," (INRC Bulletin No. 10 (1970)), "Annual and Seasonal Low-Flow Characteristics of Iowa Streams," (INRC Bulletin No. 13 (1976)), and "Statistical Summaries of Selected Iowa Streamflow Data Through September 1996, U.S. Geological Survey Open-File Report 98-176 (1998)."

(3)Protected flow levels.

a. At stream gaging stations. The protected flow, expressed in cubic feet per second (cfs) at points on a stream with an official U.S. Geological Survey stream flow gage are listed in the table below.

The Protected Flow at U.S.G.S.

Stream Gaging Locations

	River or Stream	Gage Location	Protected Low Flow (CFS)
	Beaver Creek	New Hartford	18
	Big Creek	Mount Pleasant	2
	Black Hawk Creek	Hudson	4.5
	Boone River	Webster City	24
	Boyer River	Logan	41
	Cedar River	Conesville	1240
	Cedar River	Cedar Rapids	937
	Cedar River	Waterloo	710
	Cedar River	Janesville	185
	Cedar River	Charles City	100
	Chariton River	Rathbun	2.9
	Des Moines River	Keosauqua	350
	Des Moines River	Ottumwa	300
	Des Moines River	Tracy	300
	Des Moines River	Des Moines (14th St.)	300
	Des Moines River	Saylorville	200
	Des Moines River	Stratford	310
	Des Moines River	Fort Dodge	220
	East Fork Des Moines River	Dakota City	42
	East Nishnabotna River	Red Oak	37
	East Nishnabotna River	Atlantic	18
	Floyd River	James	22
	Iowa River	Wapello	1390
	Iowa River	Lone Tree	150
	Iowa River	Iowa City	150
	Iowa River	Marengo	204
	Iowa River	Marshalltown	104
	Iowa River	Rowan	21
	Little Cedar River	Ionia	28
	Little Sioux River	Turin	200
	Little Sioux River	Correctionville	106
	Little Sioux River	Linn Grove	42
	Maple River	Mapleton	50
	Maquoketa River	Maquoketa	372
	Middle Raccoon River	Panora	20
	Middle River	Indianola	14.6
	Monona-Harrison Ditch	Turin	27
	Nishnabotna	Hamburg	128
	Nodaway	Clarinda	15
	North Raccoon River	Jefferson	82
	North Raccoon River	Sac City	14
	North River	Norwalk	5.6
	North Skunk River	Sigourney	35
	Raccoon River	Van Meter	190
	Rock River	Rock Valley	26
	Shell Rock River	Shell Rock	147
	Skunk River	Augusta	287
	Soldier River	Pisgah	20
	South Raccoon River	Redfield	58
	South River	Ackworth	4.1
	South Skunk River	Oskaloosa	94
	South Skunk River	Ames (below Squaw Creek)	23
	South Skunk River	Ames	4.8
	Thompson River	Davis City	13
	Turkey River	Garber	210
	Upper Iowa River	Decorah	80
	Walnut Creek	Hartwick	2
	Wapsipinicon River	DeWitt	150
	Wapsipinicon River	Independence	17
	West Fork Cedar River	Finchford	66
	West Fork Ditch	Hornick	12
	West Nishnabotna River	Randolph	67
	West Nishnabotna River	Hancock	49
	White Breast Creek	Dallas	3.2
	Winnebago River	Mason City	39

b. At stream locations other than gaging stations. The protected flow for points on a stream, other than at a U.S. Geological Survey gaging station, shall be established, as the need arises, by comparison of available stream flow data and basin characteristics.

This rule is intended to implement Iowa Code sections 455B.261, 455B.262 and 455B.267.

Iowa Admin. Code r. 567-52.8