USGS Water-Year Summary for Site 05422405

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	Available Parameters
	00010 Temperature, water(Mean,Max.,Min.)
	00095 Specific cond at 25C(Min.,Mean,Max.)
	00300 Dissolved oxygen(Mean,Max.,Min.)
	00400 pH(Med.,Min.,Max.)
	32318 Chlorophylls,in situ(Min.,Mean,Max.)

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Water year 2024: 2024-10-01 to 2025-09-30

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USGS Water-Year Summary 2024

05422405 MISS R AT AUX LOCK 14 (UPSTREAM) AT PLEASANT VALLEY, IA

LOCATION - Lat 41°34'29.6", long 90°24'15.7" referenced to North American Datum of 1983, in NW 1/4 NW 1/4 SE 1/4 sec.8, T.78 N., R.5 E., Scott County, IA, Hydrologic Unit 07080101, in Pleasant Valley Iowa. The motioning station is located on the upstream long-wall of the lock 14 auxiliary lock approach channel. The upstream portion of the auxiliary lock is within a gated section of the Army Corps. Facility. Follow SE 182nd Street west towards the lock facility.

DRAINAGE AREA - 88,400 mi².

SURFACE-WATER RECORDS

PERIOD OF RECORD -

SURFACE-WATER QUALITY

WATER TEMPERATURE: June 2017 to April 2018.
SPECIFIC CONDUCTANCE: June 2017 to April 2018.
PH: June 2017 to April 2018.
DISSOLVED OXYGEN: June 2017 to April 2018.
TURBIDITY: June 2017 to April 2018.
DISSOLVED CARBON DIOXIDE: June 2017 to April 2018.

GAGE -

Water quality equipment includes a Campbell Scientific CR6 datalogger, EXOII multi parameter sonde with water temperature, specific conductance, pH, and dissolved oxygen sensors, and a Pro-Oceanus Mini-Pro Co2 Sensor.

Army Corps Lock 14 contact information: 1-309-794-4357

REMARKS - The gage was discontinued on April 24, 2018.

EXTREMES FOR PERIOD OF RECORD -

WATER TEMPERATURE: Maximum, 29.1 oC, July 20, 2017; minimum 0.13 oC, Jan. 4, 2018.
SPECIFIC CONDUCTANCE: Maximum, 570 us/cm, Jan. 18, 2018; minimum 337 us/cm, Feb. 25, 2018.
PH: Maximum, 9.15, July 08, 2017; minimum 7.2, March 8, 2018.
DISSOLVED OXYGEN: Maximum, 30.76 mg/L, April 21, 2018; minimum 0.5 mg/L, Sept. 12, 2017.
DISSOLVED CARBON DIOXIDE: Maximum, 0.26%, Dec. 12, 2017; minimum 0.0%, March 26-April 24.
CHLOROPHYLL-A: Maximum 154.6 ug/L, April 13, 2018; minimum 0.89 ug/L, Sept. 20, 2017.