Tree Top, Inc.

NPDES permit WA0002437 · Minor NON-POTW · effective, expires 2029-06-30 · EPA's file as of 2026-09-19

Check this month's numbers before you file
Watch this permit — $79 a month. Every Monday, from EPA's newest files: the next report due and when, whether EPA's file holds your last one, any change to this permit's limits or status, and the renewal date.

EPA's record, 2025-09-01 to 2026-08-31

2values over a limit
70required values missing, on 48 form(s)
0of 192 forms filed late

Last period with anything received: 2026-07-31. Most often over: Nitrogen, inorganic total (1), Nitrogen, total [as N] (1).

Reporting

Reports are due about 15 days after each monitoring period ends (the most common figure among WA permits in EPA's filings — check your permit).

Limits in force (236)

OutfallParameterStatisticLimitMonths
001Temperature, water deg. centigradeDAILY AV report only (alert) Jan, Feb, Mar, Nov, Dec
001Temperature, water deg. centigradeDAILY MX <= 29.5 deg C (alert) Jan, Feb, Mar, Nov, Dec
001ConductivitySingle Rdg report only (alert) Jan, Feb, Mar, Nov, Dec
001BOD, 5-day, 20 deg. CSingle Rdg report only (alert) Jan, Feb, Mar, Nov, Dec
001pHDAILY MN >= 6 SU Jan, Feb, Mar, Nov, Dec
001pHDAILY MX <= 9 SU Jan, Feb, Mar, Nov, Dec
001Carbon, tot organic [TOC]DAILY MX <= 20 mg/L Jan, Feb, Mar, Nov, Dec
001FlowMO AVG <= .45 MGD Jan, Feb, Mar, Nov, Dec
001Chemical oxygen demand [COD]Single Rdg report only (alert) Jan, Feb, Mar, Nov, Dec
002ConductivitySingle Rdg report only (alert) all year
002BOD, 5-day, 20 deg. CSingle Rdg report only (alert) Mar, Apr, May, Jun, Jul, Aug, Sep, Oct, Nov
002BOD, 5-day, 20 deg. CMO TOTAL report only (alert) Mar, Apr, May, Jun, Jul, Aug, Sep, Oct, Nov
002BOD, 5-day, dissolvedSingle Rdg report only (alert) Mar, Apr, May, Jun, Jul, Aug, Sep, Oct, Nov
002BOD, 5-day, dissolvedMO TOTAL <= 65000 lb/d Mar, Apr, May, Jun, Jul, Aug, Sep, Oct, Nov
002pHSingle Rdg report only (alert) all year
002pHDAILY MN >= 5 SU Mar, Apr, May, Jun, Jul, Aug, Sep, Oct, Nov
002pHDAILY MX <= 10 SU Mar, Apr, May, Jun, Jul, Aug, Sep, Oct, Nov
002Alkalinity, total [as CaCO3]Single Rdg report only (alert) all year
002Alkalinity, total [as CaCO3]Single Rdg report only (alert) Mar, Apr, May, Jun, Jul, Aug, Sep, Oct, Nov
002Solids, fixed dissolvedSingle Rdg report only (alert) Mar, Apr, May, Jun, Jul, Aug, Sep, Oct, Nov
002Solids, fixed dissolvedSingle Rdg report only (alert) all year
002Solids, fixed dissolvedMO TOTAL report only (alert) Mar, Apr, May, Jun, Jul, Aug, Sep, Oct, Nov
002Solids, total suspendedSingle Rdg report only (alert) Mar, Apr, May, Jun, Jul, Aug, Sep, Oct, Nov
002Solids, total suspendedMO TOTAL report only (alert) Mar, Apr, May, Jun, Jul, Aug, Sep, Oct, Nov
002Nitrogen, total [as N]Single Rdg report only (alert) Mar, Apr, May, Jun, Jul, Aug, Sep, Oct, Nov
002Nitrogen, ammonia total [as N]Single Rdg report only (alert) Mar, Apr, May, Jun, Jul, Aug, Sep, Oct, Nov
002Nitrogen, Kjeldahl, total [as N]Single Rdg report only (alert) Mar, Apr, May, Jun, Jul, Aug, Sep, Oct, Nov
002Nitrite + Nitrate total [as N]Single Rdg report only (alert) all year
002Nitrite + Nitrate total [as N]Single Rdg report only (alert) Mar, Apr, May, Jun, Jul, Aug, Sep, Oct, Nov
002Nitrogen, inorganic totalMO TOTAL <= 13320 lb/d Mar, Apr, May, Jun, Jul, Aug, Sep, Oct, Nov
002Phosphorus, total [as P]Single Rdg report only (alert) Mar, Apr, May, Jun, Jul, Aug, Sep, Oct, Nov
002Calcium, total [as Ca]Single Rdg report only (alert) Mar, Apr, May, Jun, Jul, Aug, Sep, Oct, Nov
002Magnesium, total [as Mg]Single Rdg report only (alert) Mar, Apr, May, Jun, Jul, Aug, Sep, Oct, Nov
002Sodium, total [as Na]Single Rdg report only (alert) Mar, Apr, May, Jun, Jul, Aug, Sep, Oct, Nov
002Potassium, total [as K]Single Rdg report only (alert) Mar, Apr, May, Jun, Jul, Aug, Sep, Oct, Nov
002Chloride [as Cl]Single Rdg report only (alert) all year
002Chloride [as Cl]Single Rdg report only (alert) Mar, Apr, May, Jun, Jul, Aug, Sep, Oct, Nov
002Chloride [as Cl]MO TOTAL report only (alert) Mar, Apr, May, Jun, Jul, Aug, Sep, Oct, Nov
002Sulfate, total [as SO4]Single Rdg report only (alert) all year
002Sulfate, total [as SO4]Single Rdg report only (alert) Mar, Apr, May, Jun, Jul, Aug, Sep, Oct, Nov
002Copper, total [as Cu]Single Rdg report only (alert) Mar, Apr, May, Jun, Jul, Aug, Sep, Oct, Nov
002Copper, total [as Cu]Single Rdg report only (alert) Mar, Apr, May, Jun, Jul, Aug, Sep, Oct, Nov
002Zinc, total [as Zn]Single Rdg report only (alert) Mar, Apr, May, Jun, Jul, Aug, Sep, Oct, Nov
002Zinc, total [as Zn]Single Rdg report only (alert) Mar, Apr, May, Jun, Jul, Aug, Sep, Oct, Nov
002Nitrogen, total [as N]MO AVG <= 1.43 lbs/acre/day Mar, Apr, May, Jun, Jul, Aug, Sep, Oct, Nov
002Solids, total dissolvedSingle Rdg report only (alert) all year
002Solids, total dissolvedSingle Rdg report only (alert) Mar, Apr, May, Jun, Jul, Aug, Sep, Oct, Nov
002Solids, total dissolvedMO TOTAL report only (alert) Mar, Apr, May, Jun, Jul, Aug, Sep, Oct, Nov
002FlowSingle Rdg report only (alert) Mar, Apr, May, Jun, Jul, Aug, Sep, Oct, Nov
002FlowMO TOTAL <= 36.2 MGD Oct, Nov
002FlowMO TOTAL <= 78 MGD May, Jun, Jul, Aug, Sep
002FlowMO TOTAL <= 45.6 MGD Mar, Apr
003BOD, 5-day, 20 deg. CSingle Rdg report only (alert) Jan, Feb, Mar, Oct, Nov, Dec
003BOD, 5-day, 20 deg. CDAILY AV <= 1600 lb/d Jan, Feb, Mar, Oct, Nov, Dec
003Solids, total suspendedSingle Rdg report only (alert) Jan, Feb, Mar, Oct, Nov, Dec
003Solids, total suspendedDAILY AV <= 500 lb/d Jan, Feb, Mar, Oct, Nov, Dec
003Nitrogen, total [as N]Single Rdg report only (alert) Jan, Feb, Mar, Oct, Nov, Dec
003Nitrogen, ammonia total [as N]Single Rdg report only (alert) Jan, Feb, Mar, Oct, Nov, Dec
003Nitrogen, ammonia total [as N]Single Rdg report only (alert) Jan, Feb, Mar, Oct, Nov, Dec
003Nitrogen, Kjeldahl, total [as N]Single Rdg report only (alert) Jan, Feb, Mar, Oct, Nov, Dec
003Nitrogen, Kjeldahl, total [as N]Single Rdg report only (alert) Jan, Feb, Mar, Oct, Nov, Dec
003Nitrite + Nitrate total [as N]Single Rdg report only (alert) Jan, Feb, Mar, Oct, Nov, Dec
003Nitrite + Nitrate total [as N]Single Rdg report only (alert) Jan, Feb, Mar, Oct, Nov, Dec
003Nitrogen, inorganic totalSingle Rdg report only (alert) Jan, Feb, Mar, Oct, Nov, Dec
003pH, maximumDAILY MX <= 11 SU Jan, Feb, Mar, Oct, Nov, Dec
003pH, minimumDAILY MN >= 5 SU Jan, Feb, Mar, Oct, Nov, Dec
003FlowDAILY AV <= 80000 MGD Jan, Feb, Mar, Oct, Nov, Dec
LINFBOD, 5-day, 20 deg. CSingle Rdg report only (alert) all year
LINFBOD, 5-day, 20 deg. CSingle Rdg report only (alert) all year
LINFBOD, 5-day, 20 deg. CMO TOTAL report only (alert) all year
LINFBOD, 5-day, dissolvedSingle Rdg report only (alert) all year
LINFBOD, 5-day, dissolvedSingle Rdg report only (alert) all year
LINFBOD, 5-day, dissolvedMO TOTAL report only (alert) all year
LINFpHSingle Rdg report only (alert) all year
LINFpHSingle Rdg report only (alert) all year
LINFpHSingle Rdg report only (alert) all year
LINFNitrogen, total [as N]Single Rdg report only (alert) all year
LINFNitrogen, total [as N]Single Rdg report only (alert) all year
LINFNitrogen, total [as N]Single Rdg report only (alert) all year
LINFNitrogen, total [as N]Single Rdg report only (alert) all year
LINFNitrogen, total [as N]Single Rdg report only (alert) all year
LINFNitrogen, total [as N]Single Rdg report only (alert) all year
LINFNitrogen, ammonia total [as N]Single Rdg report only (alert) all year
LINFNitrogen, ammonia total [as N]Single Rdg report only (alert) all year
LINFNitrogen, ammonia, tot unionized [as N]MO TOTAL report only (alert) all year
LINFNitrogen, ammonia, tot unionized [as N]Single Rdg report only (alert) all year
LINFNitrogen, ammonia, tot unionized [as N]Single Rdg report only (alert) all year
LINFNitrogen, Kjeldahl, total [as N]Single Rdg report only (alert) all year
LINFNitrogen, Kjeldahl, total [as N]Single Rdg report only (alert) all year
LINFNitrogen, Kjeldahl, total [as N]Single Rdg report only (alert) all year
LINFNitrogen, Kjeldahl, total [as N]MO TOTAL report only (alert) all year
LINFNitrogen, Kjeldahl, total [as N]Single Rdg report only (alert) all year
LINFNitrite + Nitrate total [as N]Single Rdg report only (alert) all year
LINFNitrite + Nitrate total [as N]Single Rdg report only (alert) all year
LINFNitrite + Nitrate total [as N]Single Rdg report only (alert) all year
LINFNitrite + Nitrate total [as N]Single Rdg report only (alert) all year
LINFNitrite + Nitrate total [as N]MO TOTAL report only (alert) all year
LINFNitrogen, inorganic totalMO TOTAL report only (alert) all year
LINFCopper, total [as Cu]Single Rdg report only (alert) all year
LINFCopper, total [as Cu]Single Rdg report only (alert) all year
LINFCopper, total [as Cu]MO TOTAL report only (alert) all year
LINFZinc, total [as Zn]Single Rdg report only (alert) all year
LINFZinc, total [as Zn]MO TOTAL report only (alert) all year
LINFZinc, total [as Zn]Single Rdg report only (alert) all year
LINFFreeboardMINIMUM >= 2 ft all year
LINFFreeboardMINIMUM >= 2 ft all year
LINFFreeboardMINIMUM >= 2 ft all year
LINFSolids, total dissolvedSingle Rdg report only (alert) all year
LINFSolids, total dissolvedSingle Rdg report only (alert) all year
LINFSolids, total dissolvedMO TOTAL report only (alert) all year
LINFSolids, total dissolvedMO TOTAL report only (alert) all year
LINFSolids, total dissolvedMO TOTAL report only (alert) all year
LINFFlowMO TOTAL report only (alert) all year
LINFFlowMO TOTAL report only (alert) all year
LINFFlowMO TOTAL report only (alert) all year
LINFFlowMO TOTAL report only (alert) all year
LINFFlowMO TOTAL report only (alert) all year
LINFFlowMO TOTAL report only (alert) all year
MW1Temperature, water deg. centigradeSingle Rdg report only (alert) all year
MW1ConductivitySingle Rdg report only (alert) all year
MW1pHSingle Rdg report only (alert) all year
MW1Nitrogen, nitrate total [as N]Single Rdg report only (alert) all year
MW1Chloride [as Cl]Single Rdg report only (alert) all year
MW1Arsenic, total [as As]Single Rdg report only (alert) all year
MW1Copper, total [as Cu]Single Rdg report only (alert) all year
MW1Iron, total [as Fe]Single Rdg report only (alert) all year
MW1Manganese, total [as Mn]Single Rdg report only (alert) all year
MW1Zinc, total [as Zn]Single Rdg report only (alert) all year
MW1Solids, total dissolvedSingle Rdg report only (alert) all year
MW1Depth to water level ft below landsurfaceSingle Rdg report only (alert) all year
MW1Coliform, fecal generalSingle Rdg report only (alert) all year
MW2RTemperature, water deg. centigradeSingle Rdg report only (alert) all year
MW2RConductivitySingle Rdg report only (alert) all year
MW2RpHSingle Rdg report only (alert) all year
MW2RNitrogen, nitrate total [as N]DAILY MX <= 5.22 mg/L (alert) all year
MW2RNitrogen, nitrate total [as N]Single Rdg report only (alert) all year
MW2RChloride [as Cl]Single Rdg report only (alert) all year
MW2RArsenic, total [as As]Single Rdg report only (alert) all year
MW2RCopper, total [as Cu]Single Rdg report only (alert) all year
MW2RIron, total [as Fe]Single Rdg report only (alert) all year
MW2RManganese, total [as Mn]Single Rdg report only (alert) all year
MW2RZinc, total [as Zn]Single Rdg report only (alert) all year
MW2RSolids, total dissolvedDAILY MX <= 614 mg/L (alert) all year
MW2RSolids, total dissolvedSingle Rdg report only (alert) all year
MW2RDepth to water level ft below landsurfaceSingle Rdg report only (alert) all year
MW2RColiform, fecal generalSingle Rdg report only (alert) all year
MW3Temperature, water deg. centigradeSingle Rdg report only (alert) all year
MW3ConductivitySingle Rdg report only (alert) all year
MW3pHSingle Rdg report only (alert) all year
MW3Nitrogen, nitrate total [as N]DAILY MX <= 5.22 mg/L (alert) all year
MW3Nitrogen, nitrate total [as N]Single Rdg report only (alert) all year
MW3Chloride [as Cl]Single Rdg report only (alert) all year
MW3Arsenic, total [as As]Single Rdg report only (alert) all year
MW3Copper, total [as Cu]Single Rdg report only (alert) all year
MW3Iron, total [as Fe]Single Rdg report only (alert) all year
MW3Manganese, total [as Mn]Single Rdg report only (alert) all year
MW3Zinc, total [as Zn]Single Rdg report only (alert) all year
MW3Solids, total dissolvedDAILY MX <= 614 mg/L (alert) all year
MW3Solids, total dissolvedSingle Rdg report only (alert) all year
MW3Depth to water level ft below landsurfaceSingle Rdg report only (alert) all year
MW3Coliform, fecal generalSingle Rdg report only (alert) all year
MW4Temperature, water deg. centigradeSingle Rdg report only (alert) all year
MW4ConductivitySingle Rdg report only (alert) all year
MW4pHSingle Rdg report only (alert) all year
MW4Nitrogen, nitrate total [as N]DAILY MX <= 5.22 mg/L (alert) all year
MW4Nitrogen, nitrate total [as N]Single Rdg report only (alert) all year
MW4Chloride [as Cl]Single Rdg report only (alert) all year
MW4Arsenic, total [as As]Single Rdg report only (alert) all year
MW4Copper, total [as Cu]Single Rdg report only (alert) all year
MW4Iron, total [as Fe]Single Rdg report only (alert) all year
MW4Manganese, total [as Mn]Single Rdg report only (alert) all year
MW4Zinc, total [as Zn]Single Rdg report only (alert) all year
MW4Solids, total dissolvedDAILY MX <= 614 mg/L (alert) all year
MW4Solids, total dissolvedSingle Rdg report only (alert) all year
MW4Depth to water level ft below landsurfaceSingle Rdg report only (alert) all year
MW4Coliform, fecal generalSingle Rdg report only (alert) all year
WW1Temperature, water deg. centigradeSingle Rdg report only (alert) all year
WW1ConductivitySingle Rdg report only (alert) all year
WW1pHSingle Rdg report only (alert) all year
WW1Nitrogen, nitrate total [as N]DAILY MX <= 5.22 mg/L (alert) all year
WW1Nitrogen, nitrate total [as N]Single Rdg report only (alert) all year
WW1Chloride [as Cl]Single Rdg report only (alert) all year
WW1Arsenic, total [as As]Single Rdg report only (alert) all year
WW1Copper, total [as Cu]Single Rdg report only (alert) all year
WW1Iron, total [as Fe]Single Rdg report only (alert) all year
WW1Manganese, total [as Mn]Single Rdg report only (alert) all year
WW1Zinc, total [as Zn]Single Rdg report only (alert) all year
WW1Solids, total dissolvedDAILY MX <= 614 mg/L (alert) all year
WW1Solids, total dissolvedSingle Rdg report only (alert) all year
WW1Depth to water level ft below landsurfaceSingle Rdg report only (alert) all year
WW1Coliform, fecal generalSingle Rdg report only (alert) all year
WW2Temperature, water deg. centigradeSingle Rdg report only (alert) all year
WW2ConductivitySingle Rdg report only (alert) all year
WW2pHSingle Rdg report only (alert) all year
WW2Nitrogen, nitrate total [as N]DAILY MX <= 5.22 mg/L (alert) all year
WW2Nitrogen, nitrate total [as N]Single Rdg report only (alert) all year
WW2Chloride [as Cl]Single Rdg report only (alert) all year
WW2Arsenic, total [as As]Single Rdg report only (alert) all year
WW2Copper, total [as Cu]Single Rdg report only (alert) all year
WW2Iron, total [as Fe]Single Rdg report only (alert) all year
WW2Manganese, total [as Mn]Single Rdg report only (alert) all year
WW2Zinc, total [as Zn]Single Rdg report only (alert) all year
WW2Solids, total dissolvedDAILY MX <= 614 mg/L (alert) all year
WW2Solids, total dissolvedSingle Rdg report only (alert) all year
WW2Depth to water level ft below landsurfaceSingle Rdg report only (alert) all year
WW2Coliform, fecal generalSingle Rdg report only (alert) all year
WW3Temperature, water deg. centigradeSingle Rdg report only (alert) all year
WW3ConductivitySingle Rdg report only (alert) all year
WW3pHSingle Rdg report only (alert) all year
WW3Nitrogen, nitrate total [as N]DAILY MX <= 5.22 mg/L (alert) all year
WW3Nitrogen, nitrate total [as N]Single Rdg report only (alert) all year
WW3Chloride [as Cl]Single Rdg report only (alert) all year
WW3Arsenic, total [as As]Single Rdg report only (alert) all year
WW3Copper, total [as Cu]Single Rdg report only (alert) all year
WW3Iron, total [as Fe]Single Rdg report only (alert) all year
WW3Manganese, total [as Mn]Single Rdg report only (alert) all year
WW3Zinc, total [as Zn]Single Rdg report only (alert) all year
WW3Solids, total dissolvedDAILY MX <= 614 mg/L (alert) all year
WW3Solids, total dissolvedSingle Rdg report only (alert) all year
WW3Depth to water level ft below landsurfaceSingle Rdg report only (alert) all year
WW3Coliform, fecal generalSingle Rdg report only (alert) all year
WW4Temperature, water deg. centigradeSingle Rdg report only (alert) all year
WW4ConductivitySingle Rdg report only (alert) all year
WW4pHSingle Rdg report only (alert) all year
WW4Nitrogen, nitrate total [as N]DAILY MX <= 5.22 mg/L (alert) all year
WW4Nitrogen, nitrate total [as N]Single Rdg report only (alert) all year
WW4Chloride [as Cl]Single Rdg report only (alert) all year
WW4Arsenic, total [as As]Single Rdg report only (alert) all year
WW4Copper, total [as Cu]Single Rdg report only (alert) all year
WW4Iron, total [as Fe]Single Rdg report only (alert) all year
WW4Manganese, total [as Mn]Single Rdg report only (alert) all year
WW4Zinc, total [as Zn]Single Rdg report only (alert) all year
WW4Solids, total dissolvedDAILY MX <= 614 mg/L (alert) all year
WW4Solids, total dissolvedSingle Rdg report only (alert) all year
WW4Depth to water level ft below landsurfaceSingle Rdg report only (alert) all year
WW4Coliform, fecal generalSingle Rdg report only (alert) 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