Pond survey & bathymetry

Collect the pond outline and elevation evidence needed to join the historic workings to MineONE’s one-foot model.

Estimate active · no survey

Estimated scenario · no pond survey: management reports a roughly 30-acre pond where the upper 25 feet was mined for glass sand. This page scales the drill-log one-foot model to that reported area and applies the selected 40% remaining / 60% removed sand assumption in those upper layers. The pond is not mapped, so results are area-weighted and location-neutral; no spatial blocks or the property baseline are altered.

Legacy pond depletion assumption

Management scenario · sieve class unresolved

Use validated sieve fractions when available; otherwise retain 40% of modeled sand in the 0–25 ft legacy interval and treat 60% as historically removed. Retain other modeled classes and all material below 25 ft.

Applied to the location-neutral pond estimate below. Spatial block clipping and a pond-specific map still require an imported perimeter; the property baseline remains unchanged.

Estimated pond material · no survey

Area-weighted estimate from the latest completed one-foot drill-log model. No pond perimeter or pond-floor surface was supplied, so this is not spatially located and does not infer submerged elevations. Product classes and screening values use the baseline run assumptions; plant recovery and other operating costs are not added.

Reported pond area30.0 acres

Area-weighted against baseline16.5% of 182.0 modeled acres

Drill-log model layers80 one-foot layers · 0–80 ft

Feed tonnage after legacy depletion4,266,929 tons

Sand assumed removed historically755,151 tons

Estimated gross screening value$47,278,636

Baseline mining-cost estimate$29,868,503

Estimated net screening value$17,410,133

Remaining drill-log product classes

Class share is percent of modeled product-class tonnage. Waste is shown as percent of total feed.

Class	Estimated tons	Share	Screening value
Sand	2,761,821	83.1%	$27,618,212
Aggregate	470,252	14.1%	$16,458,827
Oversize	91,474	2.8%	$3,201,596
Waste / non-product	943,381	22.1% of feed	—
Total product classes	3,323,548	100%	$47,278,636

Open one-foot depth breakdown

Depth	Sand remaining	Sand removed	Aggregate	Oversize	Waste	Feed	Net screening value
0–1 ft	12,524	18,786	0	0	24,844	37,368	$-136,335
1–2 ft	13,657	20,486	0	0	23,523	37,181	$-123,692
2–3 ft	14,341	21,511	0	0	23,132	37,473	$-118,903
3–4 ft	15,198	22,797	263	53	21,612	37,126	$-96,852
4–5 ft	16,065	24,098	776	152	19,528	36,521	$-62,525
5–6 ft	17,503	26,254	821	161	16,566	35,051	$-35,949
6–7 ft	18,681	28,022	870	171	14,081	33,802	$-13,388
7–8 ft	19,331	28,996	1,423	290	12,239	33,282	$20,275
8–9 ft	20,281	30,422	1,199	245	10,595	32,321	$27,115
9–10 ft	20,859	31,289	1,577	335	9,090	31,862	$52,496
10–11 ft	21,592	32,388	1,675	356	7,399	31,021	$69,829
11–12 ft	22,024	33,036	2,036	432	6,022	30,513	$93,003
12–13 ft	22,433	33,649	2,433	523	4,623	30,011	$117,692
13–14 ft	22,705	34,058	2,729	586	3,667	29,688	$135,285
14–15 ft	22,825	34,237	3,078	656	3,021	29,580	$151,891
15–16 ft	22,903	34,355	3,390	719	2,501	29,512	$166,225
16–17 ft	23,010	34,515	3,587	758	2,042	29,398	$176,416
17–18 ft	22,640	33,960	4,731	952	1,649	29,973	$215,516
18–19 ft	22,597	33,896	5,193	1,041	1,220	30,052	$233,793
19–20 ft	22,399	33,598	5,770	1,152	1,044	30,365	$253,716
20–21 ft	22,168	33,253	6,374	1,265	908	30,715	$274,046
21–22 ft	22,032	33,048	6,740	1,336	812	30,920	$286,535
22–23 ft	21,951	32,927	7,054	1,395	640	31,041	$297,949
23–24 ft	21,884	32,826	7,301	1,443	514	31,142	$306,885
24–25 ft	21,831	32,746	7,498	1,480	414	31,222	$313,960
25–26 ft	54,509	0	7,665	1,512	282	63,968	$418,501
26–27 ft	54,427	0	7,845	1,544	151	63,968	$425,126
27–28 ft	54,553	0	7,797	1,542	76	63,968	$424,626
28–29 ft	54,434	0	7,940	1,568	25	63,968	$429,361
29–30 ft	54,384	0	7,999	1,579	5	63,968	$431,319
30–31 ft	54,387	0	7,999	1,582	0	63,968	$431,437
31–32 ft	54,338	0	8,040	1,590	0	63,968	$432,653
32–33 ft	54,113	0	8,220	1,620	15	63,968	$437,747
33–34 ft	54,043	0	8,250	1,626	49	63,968	$438,322
34–35 ft	53,947	0	8,282	1,632	107	63,968	$438,693
35–36 ft	53,726	0	8,363	1,646	233	63,968	$439,802
36–37 ft	53,561	0	8,390	1,651	366	63,968	$439,256
37–38 ft	49,380	0	8,445	1,660	4,483	63,968	$399,694
38–39 ft	47,270	0	8,266	1,632	6,800	63,968	$371,353
39–40 ft	46,676	0	8,348	1,645	7,298	63,968	$368,758
40–41 ft	45,671	0	8,396	1,652	8,249	63,968	$360,617
41–42 ft	44,113	0	8,361	1,647	9,847	63,968	$343,628
42–43 ft	46,551	0	9,208	1,754	6,455	63,968	$401,405
43–44 ft	45,719	0	9,312	1,764	7,172	63,968	$397,080
44–45 ft	45,702	0	9,414	1,775	7,077	63,968	$400,870
45–46 ft	46,500	0	9,623	1,804	6,040	63,968	$417,183
46–47 ft	47,381	0	9,825	1,829	4,934	63,968	$433,908
47–48 ft	48,819	0	10,139	1,868	3,142	63,968	$460,666
48–49 ft	49,298	0	10,230	1,865	2,575	63,968	$468,546
49–50 ft	49,214	0	10,088	1,818	2,848	63,968	$461,071
50–51 ft	49,314	0	10,105	1,817	2,732	63,968	$462,628
51–52 ft	49,287	0	10,100	1,812	2,769	63,968	$462,011
52–53 ft	49,434	0	10,033	1,785	2,717	63,968	$460,175
53–54 ft	49,355	0	10,000	1,774	2,838	63,968	$457,892
54–55 ft	49,622	0	10,185	1,819	2,342	63,968	$468,581
55–56 ft	49,136	0	10,092	1,799	2,941	63,968	$459,776
56–57 ft	47,537	0	9,749	1,729	4,952	63,968	$429,329
57–58 ft	39,224	0	8,129	1,482	15,133	63,968	$280,843
58–59 ft	37,337	0	7,757	1,420	17,453	63,968	$246,805
59–60 ft	38,282	0	7,989	1,459	16,239	63,968	$265,691
60–61 ft	33,422	0	6,979	1,288	22,280	63,968	$175,766
61–62 ft	31,694	0	6,637	1,235	24,402	63,968	$144,682
62–63 ft	29,423	0	5,840	1,117	27,588	63,968	$89,941
63–64 ft	27,111	0	5,354	1,041	30,461	63,968	$47,177
64–65 ft	27,290	0	5,143	1,029	30,506	63,968	$41,138
65–66 ft	26,056	0	4,845	975	32,091	63,968	$16,505
66–67 ft	25,100	0	4,632	938	33,298	63,968	$-1,830
67–68 ft	25,307	0	4,509	957	33,194	63,968	$-3,383
68–69 ft	24,095	0	4,250	911	34,711	63,968	$-26,180
69–70 ft	22,827	0	3,967	864	36,310	63,968	$-50,419
70–71 ft	22,006	0	3,764	832	37,365	63,968	$-66,839
71–72 ft	21,360	0	3,585	805	38,217	63,968	$-80,519
72–73 ft	22,114	0	3,697	835	37,307	63,953	$-67,903
73–74 ft	30,904	0	3,817	901	28,298	63,919	$26,717
74–75 ft	33,270	0	2,933	615	27,006	63,824	$10,109
75–76 ft	34,514	0	2,912	625	25,652	63,703	$23,011
76–77 ft	36,223	0	2,810	615	23,899	63,548	$37,287
77–78 ft	20,523	0	2,594	570	22,599	46,285	$-8,047
78–79 ft	21,832	0	2,514	565	19,930	44,841	$12,203
79–80 ft	22,072	0	2,364	557	18,234	43,228	$20,380

The class tonnages are area-weighted drill-log estimates, not tested saleable products. Values use the baseline run’s prices and mining-cost input; they exclude wash-plant recovery adjustments and other operating or capital costs.

Evidence needed to reconcile the pond

1 · Surveyed boundaryGeoJSON, KML/KMZ, GeoPackage, or zipped shapefile. Include horizontal CRS/EPSG.

2 · Current pond floorSounding CSV/XYZ or georeferenced raster. Include date, elevation units, vertical datum/geoid, and method.

3 · Historical surveyPre-dredge surface or post-dredge survey helps quantify removed glass sand and remaining materials.

Uploads are stored as source evidence only; they do not change block-model values until geometry, CRS, datum, and survey coverage are checked.

Upload survey evidence

Files stay in review status until verified. Supported source formats include CSV/XYZ, GeoJSON, KML/KMZ, GeoPackage, zipped shapefile, GeoTIFF, LAS/LAZ, and scanned reports.

Legacy pond reconciliation

Reported area30.0 acres

Reported mined depth25 ft

FootprintNot mapped

Model treatmentArea-weighted estimate · location unknown

Reported targetglass sand

After validation, MineONE can intersect the boundary with one-foot blocks. Current bathymetry sets the present floor; historical elevation data constrains pre-mining material. Unsurveyed cells must remain flagged.

1 · Import the pond perimeter

GeoJSON in EPSG:4326 is checked for valid polygon geometry and property intersection; imported area is compared with the reported 30 acres. Other source files remain stored but are not yet parsed.

2 · Import bathymetry or historical elevations

CSV columns must contain point X, Y and elevation. Coordinates are transformed to EPSG:32615 and elevations to feet. The vertical datum is required; alignment is still reviewed before model use.

Elevation alignment is provisional. The property DEM is bare-earth topography with a provisional NAVD88 reference; it is not pond-floor bathymetry. Candidate value uses relative one-foot block layers. Imported survey elevations are IDW-interpolated at plan-cell centers for comparison only; all candidate runs remain pending vertical-datum and coverage review.

Imported pond surveys

No pond geometry or elevation points imported.

3–5 · Build a separate residual-value candidate

Cells are clipped by fractional area. For layers 0–24 ft, retain 40% of modeled sand and treat 60% as historically removed; retain other classes and all deeper blocks. The baseline’s price and cost assumptions produce screening value only, without plant recovery adjustment.

Candidate results appear here after a boundary and elevation survey are imported.

Candidate one-foot map slice

Select a candidate and a depth layer. Cell fill shows its dominant residual product class; hover for tons and screening value.

CandidateDepth below modeled ground · ft

No pond candidate slice loaded.

■ Sand■ Aggregate■ Oversize■ Waste / unsupported

Survey files on record

File	Evidence type	Received	Status	Hash
property-records-pages-01-07.pdf Part 1 of 3 of the original source scan, pages 1–7: assessor aerial parcel map, 2026 parcel listing, donation deed, and ownership records. Deed area 180.49 ac; tax-roll items total 183.00 ac. Survey plat referenced but absent. Received for review.	Property records	Sep 26, 2026	Received	`81581681bf9a…`
property-registry.geojson Property verification update from SKM_C30826071614100(1).pdf: deed area 180.49 ac; 2026 assessor tax-roll entries total 183.00 ac. Keep both separately sourced. Deed cites the 1994-02-17 Stanley J. Vidrine survey, but the plat is absent. Geometry remains null pending survey and CRS verification.	Property records	Sep 26, 2026	Received	`48cae855cbd1…`

Elevation surface One-foot block model Dredge cut designer