Water-Data Report 2007 12128040 PIPERS CREEK AT , AT , WA Basin Puget Sound Subbasin

LOCATION.--Lat 47°42′42″, long 122°22′20″ referenced to North American Datum of 1927, in NW ¼ SW ¼ sec.25, T.26 N., R.3 E., King County, WA, Hydrologic Unit 17110019, on left bank 0.2 mi upstream from mouth and 7.5 mi northwest of Seattle. DRAINAGE AREA.--2.5 mi². SURFACE-WATER RECORDS PERIOD OF RECORD.--October 2006 to September 2007 (discharge measurements only). REMARKS.--Unpublished gage-height data files located in the Tacoma office of the Water Science Center.

DISCHARGE MEASUREMENTS WATER YEAR OCTOBER 2006 TO SEPTEMBER 2007 Discharge, Date in ft³/s Oct 5, 2006 1.62 Nov 16, 2006 3.44 Feb 22, 2007 2.27

U.S. Department of the Interior U.S. Geological Survey Water-Data Report 2007 12128040 PIPERS CREEK AT CARKEEK PARK, AT SEATTLE, WA—Continued

WATER-QUALITY RECORDS PERIOD OF RECORD.--December 2006 (discontinued).

WATER-QUALITY DATA WATER YEAR OCTOBER 2006 TO SEPTEMBER 2007 Part 1 of 9 [Remark codes: <, less than.] Specif- Alka- Bicar- Carbon- pH, ic linity, bonate, ate, water, conduc- wat flt wat flt wat flt Chlor- Ammonia Dis- unfltrd tance, Temper- Temper- inc tit incrm. incrm. ide, Sulfate water, Gage solved field, wat unf ature, ature, field, titr., titr., water, water, fltrd, height, oxygen, std µS/cm air, water, mg/L as field, field, fltrd, fltrd, mg/L Date Time feet mg/L units 25 degC deg C deg C CaCO3 mg/L mg/L mg/L mg/L as N (00065) (00300) (00400) (00095) (00020) (00010) (39086) (00453) (00452) (00940) (00945) (00608) Dec 04... 1130 3.17 11.3 8.2 255 8.7 8.4 88.4 108 .0 7.71 22.6 .035

WATER-QUALITY DATA WATER YEAR OCTOBER 2006 TO SEPTEMBER 2007 Part 2 of 9 [Remark codes: <, less than.] Nitrate Partic- Total Ortho- Inor- 2,6-Di- 2Chloro + ulate nitro- phos- Total ganic Organic 1-Naph- ethyl- -2',6'- nitrite Nitrite nitro- gen, phate, Phos- carbon, carbon, carbon, Organic thol, aniline diethyl water water, gen, wat unf water, phorus, suspnd suspnd suspnd carbon, water, water, acet- fltrd, fltrd, susp, by anal fltrd, water, sedimnt sedimnt sedimnt water, fltrd fltrd anilide mg/L mg/L water, ysis, mg/L unfltrd total, total, total, fltrd, 0.7u GF 0.7u GF wat flt Date as N as N mg/L mg/L as P mg/L mg/L mg/L mg/L mg/L µg/L µg/L µg/L (00631) (00613) (49570) (62855) (00671) (00665) (00694) (00688) (00689) (00681) (49295) (82660) (61618) Dec 04... 1.70 .004 .04 2.03 .053 .062 .3 <.1 .3 4.4 <.09 <.006 <.006

WATER-QUALITY DATA WATER YEAR OCTOBER 2006 TO SEPTEMBER 2007 Part 3 of 9 [Remark codes: <, less than.] 2-Ethyl 4- alpha- Azin- Azin- Ben- -6- 3,4-Di- 3,5-Di- Chloro- alpha- HCH-d6, phos- phos- flur- methyl- chloro- chloro- 2methyl Aceto- Ala- Endo- surrog, Atra- methyl methyl, alin, CIAT, aniline aniline aniline phenol, chlor, chlor, sulfan, Sch2003 zine, oxon, water, water, water, water, water, water, water, water, water, water, wat flt water, water, fltrd fltrd fltrd, fltrd, fltrd, fltrd, fltrd, fltrd, fltrd, fltrd, percent fltrd, fltrd, 0.7u GF 0.7u GF Date µg/L µg/L µg/L µg/L µg/L µg/L µg/L µg/L recovry µg/L µg/L µg/L µg/L (04040) (61620) (61625) (61627) (61633) (49260) (46342) (34362) (99995) (39632) (61635) (82686) (82673) Dec 04... <.014 <.010 <.004 <.012 <.005 <.006 <.005 <.011 90.0 <.007 <.04 <.080 <.010

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WATER-QUALITY DATA WATER YEAR OCTOBER 2006 TO SEPTEMBER 2007 Part 4 of 9 [Remark codes: <, less than.] cis- cis- Desulf- Car- Carbo- Chlor- Per- Propi- lambda- inyl- baryl, furan, pyrifos Chlor- methrin cona- Cyana- Cyflu- Cyhalo- Cyper- DCPA, fipro- Diazi- water, water, oxon, pyrifos water zole, zine, thrin, thrin, methrin water, nil, non, fltrd fltrd water, water, fltrd water, water, water, water, water, fltrd water, water, 0.7u GF 0.7u GF fltrd, fltrd, 0.7u GF fltrd, fltrd, fltrd, fltrd, fltrd, 0.7u GF fltrd, fltrd, Date µg/L µg/L µg/L µg/L µg/L µg/L µg/L µg/L µg/L µg/L µg/L µg/L µg/L (82680) (82674) (61636) (38933) (82687) (79846) (04041) (61585) (61595) (61586) (82682) (62170) (39572) Dec 04... <.060 <.020 <.06 <.005 <.010 <.013 <.018 <.053 <.014 <.046 <.003 <.012 <.005

WATER-QUALITY DATA WATER YEAR OCTOBER 2006 TO SEPTEMBER 2007 Part 5 of 9 [Remark codes: <, less than.] Diazi- Fenami- non-d10 Dimeth- Disulf- Disul- Endo- Etho- Fenami- phos surrog, Dicro- Diel- oate, oton foton, sulfan EPTC, Ethion prop, phos sulf- Sch2003 tophos, drin, water, sulfone water, sulfate water, monoxon Ethion, water, sulfone oxide, wat flt water, water, fltrd water, fltrd water, fltrd water, water, fltrd water, water, percent fltrd, fltrd, 0.7u GF fltrd, 0.7u GF fltrd, 0.7u GF fltrd, fltrd, 0.7u GF fltrd, fltrd, Date recovry µg/L µg/L µg/L µg/L µg/L µg/L µg/L µg/L µg/L µg/L µg/L µg/L (99994) (38454) (39381) (82662) (61640) (82677) (61590) (82668) (61644) (82346) (82672) (61645) (61646) Dec 04... 109 <.08 <.009 <.006 <.01 <.02 <.022 <.002 <.02 <.016 <.012 <.053 <.04

WATER-QUALITY DATA WATER YEAR OCTOBER 2006 TO SEPTEMBER 2007 Part 6 of 9 [Remark codes: <, less than.] Desulf- inyl- Fipro- Fipro- Fenami- fipro- nil nil Fipro- Hexa- Ipro- Isofen- Mala- Mala- Meta- Methi- phos, nil sulfide sulfone nil, Fonofos zinone, dione, phos, oxon, thion, laxyl, althion water, amide, water, water, water, water, water, water, water, water, water, water, water, fltrd, wat flt fltrd, fltrd, fltrd, fltrd, fltrd, fltrd, fltrd, fltrd, fltrd, fltrd, fltrd, Date µg/L µg/L µg/L µg/L µg/L µg/L µg/L µg/L µg/L µg/L µg/L µg/L µg/L (61591) (62169) (62167) (62168) (62166) (04095) (04025) (61593) (61594) (61652) (39532) (61596) (61598) Dec 04... <.03 <.029 <.013 <.024 <.016 <.006 <.026 <.026 <.011 <.039 <.016 <.007 <.009

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WATER-QUALITY DATA WATER YEAR OCTOBER 2006 TO SEPTEMBER 2007 Part 7 of 9 [Remark codes: <, less than.] Methyl Pendi- Methyl para- Moli- Oxy- meth- para- thion, Metola- Metri- nate, Myclo- fluor- alin, Phorate Phorate Phosmet Prome- oxon, water, chlor, buzin, water, butanil fen, water, oxon, water, oxon, Phosmet ton, water, fltrd water, water, fltrd water, water, fltrd water, fltrd water, water, water, fltrd, 0.7u GF fltrd, fltrd, 0.7u GF fltrd, fltrd, 0.7u GF fltrd, 0.7u GF fltrd, fltrd, fltrd, Date µg/L µg/L µg/L µg/L µg/L µg/L µg/L µg/L µg/L µg/L µg/L µg/L µg/L (61664) (82667) (39415) (82630) (82671) (61599) (61600) (82683) (61666) (82664) (61668) (61601) (04037) Dec 04... <.02 <.008 <.010 <.012 <.003 <.033 <.017 <.020 <.03 <.020 <.05 <.008 <.01

WATER-QUALITY DATA WATER YEAR OCTOBER 2006 TO SEPTEMBER 2007 Part 8 of 9 [Remark codes: <, less than.] Ter- trans- Propy- Pro- Propar- Tebu- bufos Terbu- Ter- Thio- Propi- Prome- zamide, panil, gite, Sima- thiuron Teflu- oxon fos, buthyl- bencarb cona- Tribu- tryn, water, water, water, zine, water, thrin, sulfone water, azine, water, zole, phos, water, fltrd fltrd fltrd water, fltrd water, water, fltrd water, fltrd water, water, fltrd, 0.7u GF 0.7u GF 0.7u GF fltrd, 0.7u GF fltrd, fltrd, 0.7u GF fltrd, 0.7u GF fltrd, fltrd, Date µg/L µg/L µg/L µg/L µg/L µg/L µg/L µg/L µg/L µg/L µg/L µg/L µg/L (04036) (82676) (82679) (82685) (04035) (82670) (61606) (61674) (82675) (04022) (82681) (79847) (61610) Dec 04... <.006 <.004 <.011 <.02 <.006 <.02 <.003 <.04 <.01 <.01 <.010 <.03 <.035

WATER-QUALITY DATA WATER YEAR OCTOBER 2006 TO SEPTEMBER 2007 Part 9 of 9 [Remark codes: <, less than.] Tri- Sus- flur- Di- pended alin, chlor- sedi- water, vos, ment fltrd water, concen- 0.7u GF fltrd, tration Date µg/L µg/L mg/L (82661) (38775) (80154) Dec 04... <.009 <.01 1

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