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5 <br /> <br />Watershed Protection Overlay Districts. <br />The only potential impact of the proposed amendment would be an <br />expansion, or elimination, of the requirement for a professionally <br />prepared site plan in watershed areas within an impervious surface <br />limit of 6% depending on which course of action if chosen. <br />As written, the amendment package would still require a <br />professionally prepared site plan if established stormwater <br />management land disturbance thresholds were exceeded. <br />4. There was a general concern the proposal would allow for an increase in <br />development opportunity within the various watershed districts. <br />STAFF COMMENT: The proposal would not impact existing <br />impervious surface limits in any Watershed Protection Overlay <br />District. <br />The text amendment merely seeks to clarify when a professionally <br />prepared site plan is required and does not increase allowable <br />impervious surface area throughout the County. <br />5. There was a general comment made over the need to have uniformity <br />within the UDO with respect to when a professionally prepared site plan <br />would be required. <br />A BOCC member indicated he felt requiring a professionally prepared site <br />plan when land disturbance thresholds, consistent with existing stormwater <br />management standards, were exceeded was a reasonable standard <br />versus basing the submission on impervious surface limits. <br />6. A Planning Board member asked why the Haw River Protected Watershed <br />Overlay District was not included within staff’s recommendation for the <br />submission of a professionally prepared site plan. <br />STAFF COMMENT: The Haw River Protected Watershed Overlay <br />District has an impervious surface limit of 24%. <br />Staff’s proposal seeks to amend the UDO to require overlay districts <br />with a 6% impervious surface limit to submit a professionally <br />prepared site plan. <br />7. A BOCC member indicated he felt there ought to be a reevaluation of <br />impervious surface limits within respect to any watershed feeding into a <br />public water intake for local residents. <br />The concern was the County was treating certain water supply watersheds <br />differently from others, specifically focusing on the Haw River Protected <br />Watershed Overlay District which serves as a public water source for <br />Chatham County residents. <br />STAFF COMMENT: This can be undertaken at some point in the <br />future if the BOCC directs staff to do so. It should be remembered <br />that any such review will need to take existing State requirements <br />into account. <br />8. A BOCC member asked staff to consider modifying provisions of Section <br />2.4.1 to include additional rationale for the submission of a universal site <br />21