Document a former mining yard's surface condition from the public path in Bytom

A century of shallow coal, zinc, and lead mining under Bytom has left the city sinking — an average of several meters over the last hundred years — with subsidence basins, cracked pavement, and old industrial yards that need a documented public-vantage record before anyone plans safe reuse. Standard: Główny Instytut Górnictwa (Polish Central Mining Institute) post-mining land monitoring guidance + SDG 15. Proof: Photos from the public perimeter plus written condition note Method (Główny Instytut Górnictwa (Polish Central Mining Institute) post-mining land monitoring guidance + SDG 15.): 1. Walk only the public path or accessible perimeter of the site. 2. Photograph visible surface conditions — cracking, subsidence, discoloration, standing water — from a safe distance. 3. Note any fencing, warning signage, or active repair work. 4. Do not touch, enter, or collect any soil or material. 5. Log the findings with GPS pin and date for the municipal program to review. Done when: Photos from the public perimeter plus written condition note

Where

Public perimeter path, former mining yard, Bytom, Poland

Pay

$160 proposed

This packet is not funded yet, so this figure is a proposed price and not money waiting in escrow. If a buyer funds it, approved proof settles that price onchain. If nobody funds it, approved proof earns provable credit toward the work instead of cash. You see which before you claim, never after.

Proof

Photos from the public perimeter plus written condition note

This is exactly what gets it approved. Nothing settles without it.

Level

entry

Open until

2026-09-02

How this work is done

A documented method, so this packet comes out the same whoever does it. Typically 45–90 minutes. Method of record: EPA soil screening (composite surface sample, XRF/field kit)

Bring

• trowel or auger
• clean bucket + mixing tool
• XRF analyzer or metals test kit
• PID for volatiles (if petroleum in scope)
• sample bags + labels
• N95 dust mask
• gloves + eye protection
• GPS phone
• camera

Steps

1. 1. Navigate to the parcel; record GPS; sketch a >=5-point sampling grid.
2. 2. Photograph each sampling point and any visible staining/fill/slag.
3. 3. Collect 0-15 cm cores from >=5 points; combine and mix in the clean bucket; subsample.
4. 4. Run XRF/test kit on the composite; record each metal in ppm.
5. 5. If petroleum is in scope, log PID readings and any odor/staining.
6. 6. Bag/label any lab subsample; complete chain-of-custody.
7. 7. Enter all analytes with units, depth, GPS, photos, and site sketch into the proof record; sign.

If it does not match the plan

• Lead > 400 ppm (residential) -> tag exceedance; advise raised beds / produce-washing / cover; recommend lab confirm.
• Arsenic > site screening level or PID indicating volatiles -> tag; recommend certified-lab confirmation before reuse.
• Suspected asbestos-containing material -> do not disturb; flag and stop.

What counts as done

• >=5-point composite collected at 0-15 cm
• Each screened metal recorded in ppm
• Visible staining/fill/slag noted (or absence)
• GPS waypoint + point photos + grid sketch

Proof is measured against these, not judged by taste.