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<td>In these pictures, inlets to the infiltration basin were not protected, and sediment enters the basin from exposed soils on the still active construction site. The basin was not protected from sedimentation, and sediment runs off the side slopes and is deposited in the basin.</td>
+
<td>In these pictures, '''inlets to the infiltration basin were not protected''', and sediment enters the basin from exposed soils on the still active construction site. The basin was not protected from sedimentation, and sediment runs off the side slopes and is deposited in the basin.</td>
 
<td>[[File:inlets to the infiltration basin were not protected.PNG|center|100px]]</td>
 
<td>[[File:inlets to the infiltration basin were not protected.PNG|center|100px]]</td>
<td>Heavy equipment should work from outside of the infiltration basin so soils are not compacted. In this photo, the basin has been over-excavated as designed. The excavator sits outside the basin and uses a frost ripper to loosen the soils. The same process is used to incorporate a sand/compost mix into the basin.</td>
+
<td>'''Heavy equipment should work from outside of the infiltration basin''' so soils are not compacted. In this photo, the basin has been over-excavated as designed. The excavator sits outside the basin and uses a frost ripper to loosen the soils. The same process is used to incorporate a sand/compost mix into the basin.</td>
<td>[[File:Heavy equipment will compact soils and infiltration rates will decrease or stop.PNG|center|100px]]</td>
+
<td>[[File:Heavy equipment work from outside infiltration basin so soils not compacted.PNG|center|100px]]</td>
 
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</tr>
  
 
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<td>Sediment entering the basin from exposed soils on the construction site and from the side slopes clogs the system.</td>
+
<td>Sediment entering the basin from exposed soils on the construction site and from the side slopes '''clogs the system'''.</td>
 
<td>[[File:Sediment entering the basin clogs the system.PNG|center|100px]]</td>
 
<td>[[File:Sediment entering the basin clogs the system.PNG|center|100px]]</td>
<td>Identifying infiltration areas with signs notifies staff, subcontractors and others to keep heavy machinery out, ensuring that soils are not compacted.</td>
+
<td>'''Identifying infiltration areas with signs''' notifies staff, subcontractors and others to keep heavy machinery out, ensuring that soils are not compacted.</td>
 
<td>[[File:Identifying infiltration areas with signs.PNG|center|100px]]</td>
 
<td>[[File:Identifying infiltration areas with signs.PNG|center|100px]]</td>
 
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<td>Months later, the construction project is complete. '''The basin captures rainfall from a small rain event but it doesn’t infiltrate'''. Costly repairs are required in order for it to function properly.</td>
 +
<td>[[File:Basin captures rainfall from a small rain event but it doesn’t infiltrate.PNG|center|100px]]</td>
 +
<td>'''Identifying infiltration areas with signs''' notifies staff, subcontractors and others to keep heavy machinery out, ensuring that soils are not compacted.</td>
 +
<td>[[File:Identifying infiltration areas with signs.PNG|center|100px]]</td>
 +
</tr>
  
  

Revision as of 16:45, 2 March 2016

Constructing infiltration systems.
Link to this table

Constructing infiltration systems

The final step when all contributing drainage areas have been stabilized

Noncompliant construction Compliant construction
In these pictures, inlets to the infiltration basin were not protected, and sediment enters the basin from exposed soils on the still active construction site. The basin was not protected from sedimentation, and sediment runs off the side slopes and is deposited in the basin.
Inlets to the infiltration basin were not protected.PNG
Heavy equipment should work from outside of the infiltration basin so soils are not compacted. In this photo, the basin has been over-excavated as designed. The excavator sits outside the basin and uses a frost ripper to loosen the soils. The same process is used to incorporate a sand/compost mix into the basin.
Heavy equipment work from outside infiltration basin so soils not compacted.PNG
Sediment entering the basin from exposed soils on the construction site and from the side slopes clogs the system.
Sediment entering the basin clogs the system.PNG
Identifying infiltration areas with signs notifies staff, subcontractors and others to keep heavy machinery out, ensuring that soils are not compacted.
Identifying infiltration areas with signs.PNG
Months later, the construction project is complete. The basin captures rainfall from a small rain event but it doesn’t infiltrate. Costly repairs are required in order for it to function properly.
Basin captures rainfall from a small rain event but it doesn’t infiltrate.PNG
Identifying infiltration areas with signs notifies staff, subcontractors and others to keep heavy machinery out, ensuring that soils are not compacted.
Identifying infiltration areas with signs.PNG