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Solar Farms Inc

Food Crops Grown Under Cover, West Columbia, South Carolina. NPDES permit SC0039021 expired Sep 30, 2020; its limits still apply. Last 12 months: no values over a limit. Source: EPA ECHO, Oct 22, 2026.

Reports due: About 29 days after each period: form 1 monthly (8 values)
Last report on file: September 2026
Oct 2024 – Sep 2025: 0 values over a limit, 0 required values missing, 0 of 12 reports late

Limits in force (8)

Parameter	Statistic	Limit	Months
BOD, 5-day, 20 deg. C	monthly average	≤ 20 mg/L	all year
BOD, 5-day, 20 deg. C	daily maximum	≤ 40 mg/L	all year
pH	instantaneous minimum	≥ 6 SU	all year
pH	instantaneous maximum	≤ 8.5 SU	all year
Flow, in conduit or thru treatment plant	monthly average	report only (MGD)	all year
Flow, in conduit or thru treatment plant	daily maximum	report only (MGD)	all year
Chlorine, total residual	monthly average	≤ .21 mg/L	all year
Chlorine, total residual	daily maximum	≤ .37 mg/L	all year

How strict are these limits?

BOD, 5-day, 20 deg. C, monthly average 20 mg/L — stricter than 46% of 84 other minor industrial and other permits in South Carolina; 6% have the same limit
BOD, 5-day, 20 deg. C, daily maximum 40 mg/L — stricter than 38% of 70 other minor industrial and other permits in South Carolina; 4% have the same limit
Chlorine, total residual, monthly average .21 mg/L — stricter than 32% of 75 other minor industrial and other permits in South Carolina

Cited limits by parameter: South Carolina's rules and the federal ones.

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On EPA ECHO: Facility report · DMR history

Your permit document is the final word. As JSON: /api/v1/permits/SC0039021 · MCP: https://passage-data.com/mcp