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Planner flags technical inconsistencies in draft: units, installation depth and nitrogen limits
Summary
Chris White identified inconsistent bacteriological units (microliters vs milliliters), conflicting installation-depth specs (7 vs 8 inches) and inconsistent total nitrogen limits (≤15 mg/L vs 10–15 mg/L) and recommended consulting TDEC and adopting single enforceable limits in the technical manual.
Chris White told the committee he found several technical inconsistencies in the draft that should be resolved before final adoption. He noted sections that used different bacteriological units (micro-liters versus milliliters) and said the draft should be consistent. He also identified a conflict where one section specified drip lines at 7 inches below finished grade while another said 8 inches; White recommended an approved range such as 7–8 inches or consultation with TDEC to set a standard.
On water-quality standards, White pointed out that some sections list total nitrogen as "less than or equal to 15 milligrams per liter," while others show a "10 to 15 milligrams per liter" range without explaining when the stricter limit applies. White recommended the manual either set a single enforceable maximum or specify site or receiving-water conditions that trigger the stricter 10 mg/L requirement, and said he would verify appropriate permit criteria with TDEC.
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