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Legacy Title Key
UFGS 46 53 22 Trickling Filter
Spec. Division
46 - Water and Wastewater Equipment
CCR
History: Below is a listing of the Revisions and Changes made to this UFGS.
| KEY | PREPARING ACTIVITY (PA) | A Army | N Navy | F Air Force | S NASA [ARCHIVED] |
|---|---|---|---|---|---|
| ACTION | N New | R Revision | C Change | D Deletion |
| Release | PA | Date | Action | Change # | Nature of Change or Revision |
|---|---|---|---|---|---|
| May-2018 | A | May-2018 | N |
Superseding UFGS 43 31 14 TRICKLING FILTER. Complete review and update including section number change. |
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Superseding UFGS 43 31 14
Submitted by klloyd@nibs.org on Thu, 05/29/2025 - 20:35
Superseding UFGS 43 31 14 TRICKLING FILTER. Complete review and update including section number change.