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Midlothian Water Company

Water Supply, Midlothian, Maryland. NPDES permit MD0066958, in force until Oct 31, 2029. Last 12 months: no values over a limit. Source: EPA ECHO, Oct 22, 2026.

Reports due: About 28 days after each period: form A monthly (9 values)
Last report on file: August 2026
Oct 2024 – Sep 2025: 0 values over a limit, 0 required values missing, 0 of 12 reports late

Limits in force (9)

Parameter	Statistic	Limit	Months
pH	minimum	≥ 6.5 SU	all year
pH	maximum	≤ 8.5 SU	all year
Solids, total suspended	quarterly average	≤ 20 mg/L	all year
Solids, total suspended	daily maximum	≤ 30 mg/L	all year
Iron, total [as Fe]	quarterly average	≤ 2 mg/L	all year
Iron, total [as Fe]	daily maximum	≤ 3 mg/L	all year
Manganese, total [as Mn]	quarterly average	≤ 1 mg/L	all year
Manganese, total [as Mn]	daily maximum	≤ 1.5 mg/L	all year
Flow, in conduit or thru treatment plant	average	report only (MGD)	all year

How strict are these limits?

Manganese, total [as Mn], daily maximum 1.5 mg/L — stricter than 94% of 1,051 other minor industrial and other permits nationwide
Solids, total suspended, quarterly average 20 mg/L — stricter than 72% of 74 other minor industrial and other permits nationwide; 14% have the same limit
Iron, total [as Fe], daily maximum 3 mg/L — stricter than 67% of 1,411 other minor industrial and other permits nationwide; 18% have the same limit

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

Same industry: the 18 Water Supply permits in Maryland.

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On EPA ECHO: Facility report · DMR history

Your permit document is the final word. As JSON: /api/v1/permits/MD0066958 · MCP: https://passage-data.com/mcp