NORFOLK SOUTHERN RAILWAY CO - ELKHART YARD

NPDES permit IN0050717 · Minor NON-POTW · effective, expires 2027-07-31 · EPA's file as of 2026-09-19

Check this month's numbers before you file
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EPA's record, 2025-09-01 to 2026-08-31

0values over a limit
0required values missing, on 0 form(s)
0of 13 forms filed late

Last period with anything received: 2026-07-31.

Reporting

Reports are due about 28 days after each monitoring period ends (read off this permit's own late-day counts in EPA's filings).

Limits in force (50)

OutfallParameterStatisticLimitMonths
001pHDAILY MN >= 6 SU all year
001pHDAILY MX <= 9 SU all year
001Solids, total suspendedDAILY MX <= 20 mg/L all year
001Oil and grease, hexane extr methodMO AVG <= 10 mg/L all year
001Oil and grease, hexane extr methodDAILY MX <= 15 mg/L all year
001Nitrogen, ammonia total [as N]MO AVG <= 2.1 mg/L May, Jun, Jul, Aug, Sep, Oct, Nov
001Nitrogen, ammonia total [as N]MO AVG <= 2.2 mg/L Jan, Feb, Mar, Apr, Dec
001Nitrogen, ammonia total [as N]DAILY MX <= 3.4 mg/L May, Jun, Jul, Aug, Sep, Oct, Nov
001Nitrogen, ammonia total [as N]DAILY MX <= 3.6 mg/L Jan, Feb, Mar, Apr, Dec
001Nitrogen, ammonia total [as N]MO AVG <= 8.8 lb/d May, Jun, Jul, Aug, Sep, Oct, Nov
001Nitrogen, ammonia total [as N]MO AVG <= 9.2 lb/d Jan, Feb, Mar, Apr, Dec
001Nitrogen, ammonia total [as N]DAILY MX <= 14.2 lb/d May, Jun, Jul, Aug, Sep, Oct, Nov
001Nitrogen, ammonia total [as N]DAILY MX <= 15 lb/d Jan, Feb, Mar, Apr, Dec
001Copper, total recoverableMO AVG <= 24 ug/L all year
001Copper, total recoverableDAILY MX <= 39 ug/L all year
001Copper, total recoverableMO AVG <= .1 lb/d all year
001Copper, total recoverableDAILY MX <= .16 lb/d all year
001NaphthaleneMO AVG report only all year
001NaphthaleneDAILY MX report only all year
001Flow, in conduit or thru treatment plantMO AVG report only all year
001Flow, in conduit or thru treatment plantDAILY MX report only all year
001Mercury, total recoverableMO AVG <= 1.3 ng/L Feb, Apr, Jun, Aug, Oct, Dec
001Mercury, total recoverableANNL AVG <= 18.8 ng/L Feb, Apr, Jun, Aug, Oct, Dec
001Mercury, total recoverableDAILY MX <= 3.2 ng/L Feb, Apr, Jun, Aug, Oct, Dec
001Mercury, total recoverableDAILY MX report only Feb, Apr, Jun, Aug, Oct, Dec
001Mercury, total recoverableMO AVG <= .0000054 lb/d Feb, Apr, Jun, Aug, Oct, Dec
001Mercury, total recoverableDAILY MX <= .000013 lb/d Feb, Apr, Jun, Aug, Oct, Dec
001Flow, totalMO TOTAL report only all year
003pHDAILY MX report only Jun, Dec
003pHDAILY MX report only Jun, Dec
003Solids, total suspendedDAILY MX report only Jun, Dec
003Solids, total suspendedDAILY MX report only Jun, Dec
003Oil and grease, hexane extr methodDAILY MX report only Jun, Dec
003Oil and grease, hexane extr methodDAILY MX report only Jun, Dec
003Nitrogen, Kjeldahl, total [as N]DAILY MX report only Jun, Dec
003Nitrogen, Kjeldahl, total [as N]DAILY MX report only Jun, Dec
003Nitrite + Nitrate total [as N]DAILY MX report only Jun, Dec
003Nitrite + Nitrate total [as N]DAILY MX report only Jun, Dec
003Phosphorus, total [as P]DAILY MX report only Jun, Dec
003Phosphorus, total [as P]DAILY MX report only Jun, Dec
003Chloride [as Cl]DAILY MX report only Jun, Dec
003Chloride [as Cl]DAILY MX report only Jun, Dec
003NaphthaleneDAILY MX report only Jun, Dec
003NaphthaleneDAILY MX report only Jun, Dec
003BOD, carbonaceous [5 day, 20 C]DAILY MX report only Jun, Dec
003BOD, carbonaceous [5 day, 20 C]DAILY MX report only Jun, Dec
003Chemical Oxygen Demand [COD]DAILY MX report only Jun, Dec
003Chemical Oxygen Demand [COD]DAILY MX report only Jun, Dec
003Storm water flowDAILY MX report only all year
003Storm water flowDAILY MX report only all year

Built from EPA's ECHO bulk files. EPA's file, not the permit document, is the source: read your permit. Check a report before you file it · All states