Scientific Investigations Report 2006-5073

U.S. GEOLOGICAL SURVEY
Scientific Investigations Report 2006-5073

Back to Table of Contents

Table 2. Field measurements and concentrations of major ions, nutrients, organic carbon, suspended sediment, and nitrogen isotope of nitrate (δ15N) collected at Tahuya River sampling sites during summer base-flow conditions, southern part of Hood Canal, Mason and Kitsap Counties, Washington, June 2004.

[Locations of sampling sites are shown in figure 1. Abbreviations: USGS, U.S. Geological Survey; CaCO3; calcium carbonate; HCO3, bicarbonate; N, nitrogen; P, phosphorus; δ15N, isotope fractionation of N (see equation 1). ft3/s, cubic foot per second; mg/L, milligram per liter; µS/cm, microsiemen per centimeter at 25°C; °C, degrees Celsius; µg/L, microgram per liter; e, estimated value; <, less than]

Map No. USGS site No. Sample
date		 Distance from
mouth of
Tahuya River
(miles)		 Discharge,
instantaneous
(ft3/s)		 Dissolved
oxygen
(mg/L)		 pH
(standard
units)		 Specific
conductance
(µS/cm)		 Temperature
(°C)		 Calcium
(mg/L)		 Magnesium
(mg/L)
T1 12068020 07-06-04 1.5 16.4 9.1 7.3 65 13.8 7.03 2.34
T2 12067900 07-01-04 4.5 8.8 9.4 7.9 60 16.4 6.22 2.12
T3 12067800 07-01-04 6.8 8.4 9.3 7.8 60 16.2 6.14 2.09
T4 12067700 07-01-04 7.5 6.6 9.1 7.8 57 15.5 5.88 1.93
T5 12067600 07-06-04 11.8 1.1 8.1 7.2 46 14.8 4.77 1.38
T6 12067300 07-06-04 15.5 .27 8.8 7.6 57 16.8 6.74 1.74
T7 12065800 07-02-04 20.1 1.6 7.0 7.4 60 21.9 6.99 1.70
T8 12065600 07-02-04 21.4 .11 8.6 6.8 46 11.4 4.97 1.15
Map No. USGS site No. Sample
date		 Potassium
(mg/L)		 Sodium
(mg/L)		 Alkalinity
(mg/L as
CaCO3)		 Bicarbonate
(mg/L as
HCO3)		 Bromide
(mg/L)		 Chloride
(mg/L)		 Fluoride
(mg/L)		 Silica
(mg/L)
T1 12068020 07-06-04 e0.15 2.43 31 38 <0.02 1.27 <0.2 13.9
T2 12067900 07-01-04 .17 2.46 29 34 <.02 1.34 <.2 13.8
T3 12067800 07-01-04 .18 2.42 28 34 <.02 1.24 <.2 14.2
T4 12067700 07-01-04 .18 2.29 25 30 <.02 1.29 <.2 13.8
T5 12067600 07-06-04 e.09 1.91 20 24 <.02 1.27 <.2 11.6
T6 12067300 07-06-04 e.09 1.87 28 34 <.02 1.03 <.2 7.81
T7 12065800 07-02-04 <.16 1.90 27 33 <.03 1.32 <.2 2.64
T8 12065600 07-02-04 <.16 1.90 18 21 <.02 1.29 <.2 10.8
Map No. USGS site No. Sample
date		 Sulfate
(mg/L)		 Dissolved
solids
(mg/L)		 Ammonia
(mg/L as N)		 Nitrate
plus nitrite
(mg/L as N)		 Particulate-N
(mg/L)		 Orthophosphate
(mg/L as P)		 Total
nitrogen
(mg/L)		 Total
carbon,
particulate
(mg/L)
T1 12068020 07-06-04 0.8 45 <0.04 e0.04 <0.02 <0.02 0.06 <0.1
T2 12067900 07-01-04 .8 45 <.04 .06 <.02 <.02 .12 .2
T3 12067800 07-01-04 .7 51 <.04 e.06 <.02 <.02 .12 .1
T4 12067700 07-01-04 .8 47 <.04 .1 <.02 <.02 .15 <.1
T5 12067600 07-06-04 .9 34 <.04 .1 <.02 <.02 .14 <.1
T6 12067300 07-06-04 .4 46 <.04 e.05 .02 <.02 .15 .2
T7 12065800 07-02-04 1.1 39 <.04 <.06 .04 <.02 .17 .4
T8 12065600 07-02-04 2.3 30 <.04 .17 <.02 <.02 .19 <.1
Map No. USGS site No. Sample
date		 Inorganic
carbon,
particulate
(mg/L)		 Organic
carbon,
particulate
(mg/L)		 Organic
carbon,
dissolved
(mg/L)		 Iron
(µg/L)		 Manganese
(µg/L)		 Suspended
sediment
(mg/L)		 δ15N
(per mil)
T1 12068020 07-06-04 <0.1 <0.1 0.6 14 4.5 1 14.10
T2 12067900 07-01-04 <.1 .2 .9 19 4.7 2 2.72
T3 12067800 07-01-04 <.1 .1 .8 13 3.4 1 2.09
T4 12067700 07-01-04 <.1 <.1 .7 12 3.2 1 2.93
T5 12067600 07-06-04 <.1 <.1 .6 8 1.1 1 2.60
T6 12067300 07-06-04 <.1 .2 2.7 189 2.9 2 3.72
T7 12065800 07-02-04 <.1 .4 2.6 82 12.1 1 –
T8 12065600 07-02-04 <.1 <.1 .7 8 1.9 <.5 1.96

1Data values are highly uncertain.

Back to Table of Contents

For more information about USGS activities in Washington, visit the USGS Washington Water Science Center home page.

AccessibilityFOIAPrivacyPolicies and Notices

Take Pride in America home page.FirstGov buttonU.S. Department of the Interior | U.S. Geological Survey
Persistent URL: https://pubs.water.usgs.gov/sir20065073
Page Contact Information: Publications Team
Page Last Modified: Thursday, 01-Dec-2016 19:04:13 EST