USGS Open-File Report 2004-1443, Operation Manual for a Time-Series, Storm-Activated Suspended Sediment Sampler Deployed in the Coastal Ocean, Table 4

USGS Open-File Report 2004-1443, Operation Manual: Time-Series, Storm-Activated Suspended Sediment Sampler Deployed in the Coastal Ocean

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Table 4. Results of laboratory tests using different sediment concentrations and types with the WTS-P instrument and a siphon tube.

Sediment Trap Sample S60-13

Sample	raw wt. (mg)	vol. filtered (ml)	mg/l	Mean	Standard Deviation	WTS-P/Siphon tube %
WTS-P, a 10 mg/l< solution @ 100 ml/min flow rate with	0.93	101.38	9.17
WTS-P, a 10 mg/l< solution @ 100 ml/min flow rate with	1.02	103.47	9.86	9.43	0.37
WTS-P, a 10 mg/l< solution @ 100 ml/min flow rate with	0.88	97.19	9.27
WTS-P results divided by Siphon results						99.9%
Siphon tube at same parameters as above	0.75	80.24	9.35
Siphon tube at same parameters as above	0.65	67.01	9.70	9.44	0.23
Siphon tube at same parameters as above	0.88	94.89	9.27
WTS-P, a 10 mg/l solution @ about 50 ml/min flow rate	1.15	131.80	8.73
WTS-P, a 10 mg/l solution @ about 50 ml/min flow rate	1.05	115.23	9.11	8.69	0.44
WTS-P, a 10 mg/l solution @ about 50 ml/min flow rate	0.86	104.39	8.24
WTS-P results divided by Siphon results						99.5%
Siphon tube at same parameters as above	1.04	109.44	9.50
Siphon tube at same parameters as above	0.90	103.62	8.69	8.73	0.74
Siphon tube at same parameters as above	0.74	92.25	8.02

Muddy bottom sediment from the continental shelf

Sample	raw wt. (mg)	vol. filtered (ml)	mg/l	Mean	Standard Deviation	WTS-P/Siphon tube %
WTS-P ~4 mg/l @ 125 ml/min flow rate	1.63	497.98	3.40
@WTS-P ~4 mg/l @ 125 ml/min flow rate	1.74	508.50	3.43	3.40	0.04
WTS-P ~4 mg/l @ 125 ml/min flow rate	1.68	499.78	3.36
WTS-P results divided by Siphon results						88.1%
Siphon tube ~4 mg/l @ 125 ml/min	1.66	486.40	3.42
Siphon tube ~4 mg/l @ 125 ml/min	2.11	503.00	4.20	3.86	0.40
Siphon tube ~4 mg/l @ 125 ml/min	1.83	460.50	3.97
WTS-P ~4 mg/l @ 50 ml/min	1.24	447.98	2.76	2.8	0.06
WTS-P ~4 mg/l @ 50 ml/min	1.45	511.48	2.84
WTS-P results divided by Siphon results						71.4%
Siphon tube ~4 mg/l @ 50 ml/min	1.83	450.60	4.06	3.92	0.20
Siphon tube ~4 mg/l @ 50 ml/min	1.76	465.90	3.78

Sand (0.125-0.0625 mm) FROM QUISSETT HARBOR

Sample	raw wt. (mg)	vol. filtered (ml)	mg/l	Mean	Standard Deviation	WTS-P/Siphon tube %
WTS-P ~15 mg/l ml/min flow rate @ 125	1.13	515.58	2.19	3.22	0.45
WTS-P ~15 mg/l ml/min flow rate	2.08	488.98	4.25			28.5%
WTS-P results divided by Siphon results	2	4				28.5%
Siphon tube ~15 mg/l 125 ml/min flow rate	4.79	494.30	9.68	11.31	2.31
Siphon tube ~15 mg/l 125 ml/min flow rate	6.10	471.70	12.94
WTS-P results divided by Siphon results						95.2%*
sampled using a beaker from middle of bucket	4.80	497.30	9.65	11.88	3.15
sampled using a beaker from middle of bucket	7.46	514.20	14.51
Siphon results divided by beaker results						95.2%

*Siphon/beaker as %. This confirms the results of the siphon.