TABLE 1
BUFFERS, WETLAND ENHANCEMENT, STREAM BANK STABILIZATION AND NATIVE PLANTED PCBMPsa,b,c
BUFFERS, WETLAND ENHANCEMENT, STREAM BANK STABILIZATION AND NATIVE PLANTED PCBMPsa,b,c
Monitoring And Management Period As Required By Certification | Temporary Vegetative Cover/Permanent Soil Stabilizationd | Percent Cover Native Vegetationd | Floristic Quality Index (FQI)f | Coefficient Of Conservatism ()f | None Of 3 Most Dominant Species Are Nonnative Or Invasivee | Survival Rate For Trees And Shrubsg |
Year 1 | Must meet NPDES standards | 10% | - | - | Cover crop acceptable | 100% |
Year 2 | No unvegetated areas >1m2 | 25% | - | - | Required | 100% |
Year 3 | No unvegetated areas >1m2 | 75% | 20 | 3.5 | Required | 100% |
TABLE 2
WETLAND CREATIONa,b
WETLAND CREATIONa,b
Monitoring And Management Period As Required By Certification | Temporary Vegetative Cover/Permanent Soil Stabilizationd | Percent Cover Native Vegetationd | Percent Cover Of Species As Listed On Approved Plant Mixesd | Floristic Quality Index (FQI) | Coefficient Of Conservatism () | None Of 3 Most Dominant Species Are Nonnative Or Invasivee | Survival Rate For Trees And Shrubsg |
Year 1 | Must meet NPDES standards | 10% | 10% | - | - | Cover crop acceptable | 100% |
Year 2 | No unvegetated areas >1m2 | 25% | 25% | - | - | Required | 100% |
Year 3 | No unvegetated areas >1m2 | 50% | 50% | 15 | 3.0 | Required | 100% |
Year 4 | No unvegetated areas >1m2 | 60% | 60% | - | - | Required | 100% |
Year 5 | No unvegetated areas >1m2 | 80% | 75% | 20 | 3.5 | Required | 100% |
Notes:
a. Performance standards shall be applied to and achieved in each separate plant community zone and do not apply to designated open water areas.
b. Upon final acceptance, it is the expectation that the PCBMP will continue to be maintained as specified in the stormwater management certification in perpetuity or until modified by a subsequent stormwater management certification.
c. BMP standards are only for BMPs with a tributary area greater than 1 acre. There are no performance standards for BMPs with tributary areas of less than 1 acre.
d. As measured by aerial coverage, excluding the emergent zone. The emergent zone must achieve a minimum of 50 percent vegetative cover.
e. Species include, but are not limited to: Typha angustifolia, Typha X glauca, Phragmites australis, Lythrum salicaria, Salix interior, Phalaris arundinacea, Cirsium arvense, Melilotus sp., Poa pratensis, Dipasacus sp.
f. FQI and/or () can be adjusted downward when taking the context of the location into consideration. PCBMPs are not required to meet FQI or ().
g. Percentage can be adjusted downward based on quantities planted and when taking the context of the location into consideration.
(Ord. G-976, 7-24-2012)