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effectively under budget constraints. If the site design includes many LID features,
sampling only a few may provide a reasonable basis to estimate the effectiveness of the
full suite of features.
5-5.2.9 Sampling Protocols. Monitoring protocols vary depending on the expected
chemical composition of the runoff, the pollutant of concern, the desirability of
monitoring the effectiveness of a device at a given location, and the importance of
assessing water quality at points downstream. As sampling data is collected over time,
trends in the water quality become apparent. Adjustments in the monitoring plan may
be appropriate to ensure that across the site samples are not taken any more or less
frequently than necessary to ensure that a desirable level of water quality is maintained.