Stream Monitoring

Since October 1999, the Iowa Department of Natural Resources has maintained a network of stations to monitor water quality in the state. A total of 91 sites have been part of this network. However, the total number of stations monitored varies each year. The most stations sampled was in 2003-2006 when a total of 84 stream sites and 1 spring were sampled. Currently, a total of 60 stream sites are sampled.

Generally, the sites in this network are sampled monthly. However, some sites in certain years have received more frequent monitoring to assess the impacts of flooding on the water quality.

STORETID

Name

x_coord

y_coord

10030001

Upper Iowa River near Dorchester

-91.50891700

43.42149770

10030002

Yellow River near Volney

-91.26492120

43.11177890

10040002

Chariton River at 461st St.

-92.8823124

40.81051105

10070001

Beaver Creek near Cedar Falls

-92.50670070

42.57317020

10070002

Wolf Creek at La Porte City

-92.19379770

42.31574780

10070003

West Fork Cedar River at Finchford

-92.54366600

42.62897290

10070004

Black Hawk Creek at Waterloo

-92.41360470

42.46947460

10090001

Cedar River near Janesville

-92.46655040

42.64958570

10100001

Wapsipinicon River near Independence (US1)

-91.97403520

42.51215680

10120001

Shell Rock River at Shell Rock

-92.58142950

42.71154350

10180001

Little Sioux River near Larrabee

-95.46359290

42.86474340

10220001

Turkey River near Garber

-91.26197570

42.73954700

10220002

Volga River near Elkport

-91.27677980

42.74972930

10220003

Bloody Run Creek Site #1 (BR01)

-91.20555040

43.04049910

10250001

South Raccoon River near Redfield

-94.18291730

41.57973960

10270001

Thompson Fork - Grand River at Davis City

-93.80787030

40.64067070

10300001

Little Sioux River near Milford

-95.18133090

43.31891190

10340001

Cedar River near Charles City (DS1)

-92.60261110

43.00602720

10360001

East Nishnabotna River near Shenandoah (US1)

-95.38489080

40.78567310

10360003

Nishnabotna River near Hamburg

-95.64562143

40.60174359

10400001

Boone River near Stratford

-93.89227030

42.34104200

10420001

Iowa River near Gifford

-93.07568120

42.31021340

10430001

Boyer River near Missouri Valley

-95.84522940

41.57312720

10430002

Soldier River near Pisgah

-95.93156430

41.83058300

10440001

Cedar Creek near Oakland Mills

-91.67370190

40.92539420

10460001

West Fork Des Moines River near Humboldt

-94.20714160

42.67437070

10490001

North Fork Maquoketa River near Hurstville

-90.67212210

42.09017750

10490004

Maquoketa River west of Maquoketa

-90.69540368

42.07073661

10490005

Maquoketa River at Spragueville

-90.51782

42.1014

10500001

Indian Creek near Colfax

-93.22609370

41.74615730

10520001

Old Mans Creek nr Iowa City

-91.61562800

41.60652620

10540001

North Skunk River

-92.25739540

41.28375270

10550001

East Fork of The Des Moines River near St. Joseph

-94.23340400

42.95138640

10560002

Skunk River near Augusta

-91.27558980

40.75340048

10570001

Cedar River Downstream of Cedar Rapids (DS1)

-91.55058560

41.92574160

10580002

Iowa River near Lone Tree

-91.47909000

41.42386500

10580003

Iowa River near Wapello

-91.18214713

41.18033068

10620001

South Skunk River near Oskaloosa

-92.65714470

41.35525720

10630002

Cedar Creek near Bussey

-92.90790480

41.21906980

10630003

Whitebreast Creek near Dallas

-93.29011400

41.24668700

10640002

Iowa River Downstream of Marshalltown (DS1)

-92.84657750

42.05079900

10650001

West Nishnabotna River near Malvern

-95.52790830

40.98727730

10670002

Maple River near Mapleton

-95.79613670

42.17142480

10670003

Little Sioux River near Turin

-95.97287661

41.96508187

10700001

Cedar River near Conesville

-91.29017050

41.40935900

10730001

West Nodaway River near Shambaugh

-95.02827280

40.65933650

10730002

East Nodaway River near Clarinda

-94.97974960

40.72743490

10750001

Floyd River near Sioux City

-96.31202730

42.57674810

10770001

Beaver Creek near Grimes

-93.73549990

41.68825320

10810001

North Raccoon River near Sac City (DS1)

-94.98571160

42.34000140

10820001

Wapsipinicon River at De Witt

-90.53491040

41.76653300

10840001

Rock River near Hawarden

-96.44512130

43.08390800

10850002

South Skunk River near Cambridge (DS1)

-93.55101310

41.95037970

10890001

Des Moines River near Keosauqua

-91.96061524

40.72823230

10910001

Middle River near Indianola

-93.58728520

41.42468950

10910002

North River near Norwalk

-93.65502120

41.45780610

10910003

South River near Ackworth

-93.43072290

41.37229370

10920001

English River at Riverside

-91.58035180

41.47553480

10970001

Little Sioux River near Smithland

-95.90642430

42.25135660

10970002

West Fork Ditch at Hornick

-96.07780000

42.22700000