Public Law 86-121 Annual Report for 2010 - Indian Health Service
Public Law 86-121 Annual Report for 2010 - Indian Health Service
Public Law 86-121 Annual Report for 2010 - Indian Health Service
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The lagoon be<strong>for</strong>e the repair<br />
Erosion at the fence of the wastewater lagoon.<br />
Brockton Lagoon Bank Stabilization<br />
Fort Peck Reservation, Montana<br />
The embankment of the existing wastewater lagoon is eroding and several areas<br />
are vertical and under cut by the erosion. Wind erosion could wash out the banks<br />
during times of high water depths in the cell. In the spring the City of Brockton<br />
has to hold water at high levels to ensure that treatment has occurred be<strong>for</strong>e<br />
discharging in order to meet the NPDES requirements.<br />
There are areas where the dike width has eroded to less than 10’ adjacent to a<br />
drainage channel and is most susceptible to erosion due to prevailing winds.<br />
The lagoon system is adjacent to the Missouri River and may present a threat to<br />
downstream individual and community water users. Continued erosion may<br />
cause dike failure within 3 years. This project served 94 American <strong>Indian</strong> homes.<br />
Reconstruction of the embankment.<br />
12<br />
The Sanitation Facilities Construction Program of the <strong>Indian</strong> <strong>Health</strong> <strong>Service</strong> • <strong>Public</strong> <strong>Law</strong> <strong>86</strong>-<strong>121</strong> <strong>Annual</strong> <strong>Report</strong> <strong>for</strong> <strong>2010</strong>
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