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Water-Year Summary for Site 14226500

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Available Parameters
00060 Discharge(Mean)  

Water year 2018: 2017-10-01 to 2018-09-30
 

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USGS Water-Year Summary 2018
14226500 COWLITZ RIVER AT PACKWOOD, WA
LOCATION - Lat 46°36'47", long 121°40'41" referenced to North American Datum of 1927, in SE 1/4 SE 1/4 sec.16, T.13 N., R.9 E., Lewis County, WA, Hydrologic Unit 17080004, on right bank on upstream side of Forest Service bridge, 0.6 mi northwest of Packwood, 0.8 mi upstream from Skate Creek, and at mile 126.5.
DRAINAGE AREA - 287 mi².
REVISIONS HISTORY - WSP 884: 1938. WSP 1348: 1916-18(M), 1934. WSP 1638: 1947(P).
SURFACE-WATER RECORDS
PERIOD OF RECORD - July 1911 to December 1919, September 1929 to current year. Published as "at Lewis" 1911-19.
GAGE - Water-stage recorder and crest-stage gage. Datum of gage is 1,048.0 ft above NGVD of 1929 (Bureau of Public Roads benchmark). July 1, 1911, to Dec. 31, 1919, nonrecording gages at site about 1 mi upstream at different datums. Sept. 30, 1929, to Jan. 1, 1930, nonrecording gage at present site and datum.
REMARKS - Minor regulation by Packwood Lake beginning June 1964. Small diversions for domestic use. Water temperatures November 1970 to April 1971. U.S. Geological Survey satellite telemeter at station. Water is diverted from Packwood Lake for power generation and is discharged into Cowlitz River about 1 mi downstream from station.
  • Water Year 2014: No estimated daily discharges. Records good except for flows above 10,000 ft³/s, which are poor. Water is diverted from Packwood Lake for power generation and is discharged into Cowlitz River about 1 mi downstream from station. Monthly mean diversion in cubic feet per second for the current water year, as furnished by Energy Northwest is as follows:
    October     2.48      January    92.0     April     104     July         165
    November    110       February   62.4     May       191     August       67.3 
    December    89.3      March      149      June      182     September    79.4
    
  • Water Year 2015: No estimated daily discharges. Records good except for flows above 10,000 ft³/s, which are poor. Water is diverted from Packwood Lake for power generation and is discharged into Cowlitz River about 1 mi downstream from station. Monthly mean diversion in cubic feet per second for the current water year, as furnished by Energy Northwest is as follows:
    October     11.0      January    141      April     55.3    July         37.1
    November    141       February   104      May       91.4    August       24.3 
    December    145       March      74.4     June      79.2    September    76.7
    
  • Water Year 2016: No estimated daily discharges. Records good except for flows above 10,000 ft³/s, which are poor. Water is diverted from Packwood Lake for power generation and is discharged into Cowlitz River about 1 mi downstream from station. Monthly mean diversion in cubic feet per second for the current water year, as furnished by Energy Northwest is as follows:
    October     0         January    71.0     April     107     July         76.0
    November    137       February   138      May       125     August       41.0 
    December    142       March      109      June      126     September    75.0
    
  • Water Year 2017: No estimated daily discharges. Records good except for flows above 10,000 ft³/s, which are poor. Water is diverted from Packwood Lake for power generation and is discharged into Cowlitz River about 1 mi downstream from station. Monthly mean diversion in cubic feet per second for the current water year, as furnished by Energy Northwest is as follows:
    October     7.53      January    40.0	   April    90.0    July         99.0
    November    128       February   74.0      May      183     August       41.0 
    December    59.0      March      124       June     211     September    78.0
  • Water Year 2018: Records good except estimated discharges and flows above 10,000 ft³/s, which are poor. Water is diverted from Packwood Lake for power generation and is discharged into Cowlitz River about 1 mi downstream from station. Monthly mean diversion in cubic feet per second for the current water year, as furnished by Energy Northwest is as follows:
    October     0.00      January    117	   April    82.5    July         82.2
    November    135       February   111       May      196     August       39.7 
    December    85.6      March      35.4      June     117     September    75.7
EXTREMES FOR PERIOD OF RECORD - Maximum discharge, 42,100 ft³/s, Nov. 6, 2006, gage height, 14.59 ft; minimum discharge, 130 ft³/s, Nov. 29, 1952.