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MAINTENANCE

DREDGING

MATAGORDA SHIP CHANNEL, TEXAS

TABLE l'

Results of Tests on Sediment Samples*

,-

,

Vol Sol

COD

Tot Nit Oil & Grease Mercury Lead

Zinc

Sample

Stat~on

mg/kg

mg/kg-

mg/kg

mg/kg dry

mg/kg

mg/kg

mg/kg

Number

Description

dry wt.

dry wt.

drywt.

wt.

dry wt. dry wt. dry wt.

EPA Proposed Criteria**

60,000

50,000

1,000

1,500

1.0

50

50

of 1/11/71

M-7la-1S Lynn Bayou Turning

86,000

47,800

3,350

700

0.6

~

<

50

1!.Q.

Basin

M-71a-2S Channel to Port

81,000

33,700

2,250

159

.!:...!d <

50

70

Lavaca nr. sta

170+00

M-71a-3S

Channel -to Port

74,000

36,200

2,720

140

1.43

<

50

70