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→Sampling
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===Sampling===
===Sampling===
The number of test pits or soil borings varies depending on site conditions and the proposed development plan. General guidelines are as follows:
The number of test pits or soil borings varies depending on site conditions and the proposed development plan. General guidelines are as follows:
+
+
+Result
+{| class="wikitable"
+! BMP Footprint (m²)
+! test pit
+! Bore hole
+|-
+| < 50 || 1 || 1
+|-
+| 50 – 900 || 1 || 2
+|-
+| || 2 || 0
+|-
+| > 900 || 1 every 450 m² || 2 every 450 m2
+|-
+| || 2 every 450 m² || 0
+|-
+| Linear || 1 every 450 m² || 1 every 50 m
+|}
+
*For infiltration BMPs with footprint surface areas from 50 - 900 m<sup>2</sup>, a minimum of two test pits or one test pit and two soil borings are required at, or within 10 m of the proposed location to determine the suitability and distribution of soil types present;
*For infiltration BMPs with footprint surface areas from 50 - 900 m<sup>2</sup>, a minimum of two test pits or one test pit and two soil borings are required at, or within 10 m of the proposed location to determine the suitability and distribution of soil types present;