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<br />
<br />Data Presentation
<br />
<br />Analytical results for chemical-quality and sus-
<br />pended-sediment samples collected at gaging stations
<br />GSO I-DS06 and SW134 in water year 1996 are listed
<br />in tables 25-31 in the "Surface-Water Data" section.
<br />Analytical results for miscellaneous suspended-
<br />sediment samples collected at gaging stations GS I 0,
<br />GSll, and GSI6 are listed in table 32.
<br />In each of the tables 25 to 32, the instantaneous
<br />collection time is reported for manual samples, and the
<br />interval collection time (start to end) is reported for
<br />automatic samples. The instantaneous discharge is
<br />reported for manual samples, and the weighted mean
<br />discharge (for the sampled time interval) is reported
<br />for composite samples.
<br />Analytical results for plutonium-238, pluto-
<br />nium-239/240, and americium-24I are listed without
<br />rounding because Site regulatory standards for these
<br />constituents are lower than the normal USGS mini-
<br />mum reporting limits. All other radionuclide results
<br />are listed with standard USGS rounding and minimum
<br />reporting limits. The error associated with each
<br />radionuclide result is quantified in tables 25-31 by a
<br />value (2 SIGMA) that is defined as plus or minus the
<br />total propagated analytical uncertainty at the 95-per-
<br />cent confidence level (A.H. Mullin, U.S. Geological
<br />Survey, National Water Quality Laboratory, oral
<br />commun., 1996).
<br />
<br />REFERENCES CITED
<br />
<br />Britton, L.J., and Greeson, P.E., eds., 1989, Methods for
<br />collection and analysis of aquatic biological and
<br />microbiological samples: U.S. Geological Survey
<br />Techniques of Water-Resources Investigations, book 5,
<br />chap. A4, 363 p. [Revised].
<br />Carter, R. W., and Davidian, Jacob, 1968, General procedure
<br />for gaging streams: U.S. Geological Survey Tech-
<br />niques of Water-Resources Investigations, book 3,
<br />chap. A6, 13 p.
<br />EG&G Rocky Flats, Incorporated, 1992, Procedure FO.l3
<br />containerizing, preserving, handling, and shipping of
<br />soil and water samples: Golden, Colo., Environmental
<br />Management Division Operating Procedures,
<br />v. I (Field Operations), p. 13--1-13--18,
<br />
<br />EG&G Rocky Flats, Incorporated, 1993a, Site environmen-
<br />tal report for 1993: Golden, Colo., RFP-ENV-93,
<br />322p.
<br />EG&G Rocky Flats, Incorporated, 1993b, Event-related
<br />surface-water monitoring report, Rocky Flats Plant,
<br />water years 1991 and 1992: Golden, Colo., 146 p.
<br />Fishman, M.J., and Friedman, L.C., eds., 1989, Methods for
<br />determination of inorganic substances in water and
<br />fluvial sediments (3d ed.): U.S. Geological Survey
<br />Techniques of Water-Resources Investigations, book 5,
<br />chap. AI, 545 p.
<br />Guy, H.P., and Norman, V.w., 1982, Field methods for mea-
<br />surement of fluvial sediment: U.S. Geological Survey
<br />Techniques of Water-Resources Investigations, book 3,
<br />chap. C2, 59 p. [4th printing].
<br />Hem, J.D., 1985, Study and interpretation of the chemical
<br />characteristics of natural water (3d ed.): U.S. Geolog-
<br />ical Survey Water-Supply Paper 2254, 263 p.
<br />Isco, Inc., 1990, 3700 portable sampler instruction manual:
<br />Lincoln, Nebr., Part #60-3703-034, variously paged.
<br />Rantz, S.E., and others, 1982, Measurement and computa-
<br />tion of streamflow-v. 1, Measurement of stage and
<br />discharge; v. 2, Computation of discharge: U.S.
<br />Geological Survey Water-Supply Paper 2175, v. 1,
<br />p. 1-284; v. 2, p. 285-631.
<br />Rocky Mountain Remediation Services, L.L.C, 1995,
<br />Event-related surface-water monitoring report, water-
<br />year 1994: Golden, Colorado, 120 p,
<br />Stevens, H.H., Jr., Ficke, J.F., and Smoot, G.F., 1975, Water
<br />temperature--Influentia1 factors, field measurement,
<br />and data presentation: U.S. Geological Survey
<br />Techniques of Water-Resources Investigations, book 1,
<br />chap. 01, 65 p.
<br />Ugland, R.C., Maum, W.S., Steger, R.D., and O'Neill, G.B.,
<br />1995, Water resources data, Colorado, water year
<br />1994--v. 1, Missouri River Basin, Arkansas River
<br />Basin, and Rio Grande Basin: U.S. Geological Survey
<br />Water-Data Report C0-94-I, 418 p.
<br />U.S, Geological Survey, 1976, Hydrologic unit map, 1974,
<br />State of Colorado: U.s. Department of the Interior,
<br />scale 1:500,000.
<br />Wershaw, R.L., Fishman, M.J., Grabbe, R.R., and
<br />Lowe, L.E., eds., 1987, Methods for the determination
<br />of organic substances in water and fluvial sediments:
<br />U.S. Geological Survey Techniques of Water-
<br />Resources Investigations, book 5, chap. A3, 80 p.
<br />
<br />Explanation 01 tha Surface-Water Data 5
<br />
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