Tank stack · 2026
640-001 Pheiffer Water Tower
Pittsfield, IL · near Pittsfield Penstone Muni (2.9 mi)
What this outcome means
The FAA studied the proposal and concluded it would not be a hazard to air navigation. A no-hazard determination is not permanent — it carries an expiration date, and if the structure is not built by then the case has to be re-filed.
The proposal, in the filer's words
"Proposed welded-steel elevated water storage tank (EST) on a single steel stem with base cone (no guy wires). TOC/ground elevation at base = EL. 730.29 ft. Top of tank = EL. 852.04 ft giving an overall structural height = 121’-9” (121.75 ft AGL). Operating water surface elevations: HWL = EL. 845.29 ft (115.0 ft AGL) and LWL = EL. 816.54 ft (86’-3” AGL) (head range 28’-9”). Tank includes access tube/manways ladders/platforms inlet/outlet riser piping overflow and roof vent. Roof includes an antenna corral; antenna post height shown as 72 inches (6 ft) above the roof—if installed/considered the highest point the highest elevation = EL. 858.04 ft and overall height = 127’-9” (127.75 ft AGL)."
Filing details
- Case number (ASN)
- 2026-AGL-4136-OE
- Structure
- 640-001 Pheiffer Water Tower
- Type
- Water_tower
- Category
- Tank stack
- Height above ground
- 128 ft
- Height above sea level
- 857 ft
- Site elevation
- 729 ft
- Notice of
- New Construction
- Duration
- Permanent
- Marking & lighting
- —
Timeline
- Filed
- March 4, 2026
- Determined
- March 25, 2026
- Determination expires
- September 25, 2027
A determination that lapses before the structure is built has to be re-filed. The FAA does not send a reminder.
Who filed it
- Sponsor
- Pike County PWD 1
- Representative
- Bradley Unmisig
Names are shown as they appear in the FAA's public record. How we handle names
Location
- Coordinates
- 39.597708, -90.771514
- Degrees / minutes / seconds
- 39°35'51.7"N 90°46'17.5"W
- County
- Pike
- Open in a map
- Google MapsOpenStreetMap
About this record
This page is a readable copy of a public record published by the FAA's Obstruction Evaluation / Airport Airspace Analysis system. It is not the official record and may lag it. For the authoritative case status, search this ASN at the FAA's OE/AAA portal. If something here is wrong, email support@idea-engine.studio and we will correct it.
Source: FAA Obstruction Evaluation / Airport Airspace Analysis (OE/AAA) public archive (oeaaa.faa.gov), data as of September 12, 2026. Compiled by LOS Analyzer (Idea Engine LLC). This is not an official FAA record or an FAA determination; the FAA's portal is authoritative. LOS Analyzer is not affiliated with or endorsed by the FAA.
Screening a structure of your own?
Check Part 77 and the tower's line of sight before you file
LOS Analyzer screens a proposed structure against FAA Part 77 surfaces and the control tower's sightline to the runway, terrain-aware, in minutes. It is a preliminary screening — not an FAA determination and not a substitute for a licensed engineering review.