ancient burial mounds for buffalo bayou bodies washed into the ship channel.

CAD shows all owned by Houston Port authority

redaszag99 said:

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I always thought the one on the East side of 610 was dredge spoils.

If you look on the east side of 610 you can see poly pipe where it looks like the pump it from the channel

https://maps.app.goo.gl/p64HgqARUycyZDSA6?g_st=ic

https://maps.app.goo.gl/WhQvsd8nTvokbD7q7?g_st=ic

https://maps.app.goo.gl/ho2smYQQdtV1rEWp8?g_st=ic

https://maps.app.goo.gl/pUReAHa8rvsvD4yw5?g_st=ic

https://maps.app.goo.gl/FYMsN2qYHCwQeVHc6?g_st=ic

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The one on the east side is for sure ship channel dredge spoils. I have been out there on top of the berm at the north end. The empty vegetated area just beyond the northwest corner south of the rail line is the southern parcel of the Federated Metals State Superfund site. The production facility north of the railroad used to smelt recycled metals and disposed of magnesium dross and refractory brick from the smelter on the southern parcel.

At some point in that process, they had smelted down some old VW engines that contained traces of thorium, which ended up in the dross piles, making the site radioactive. When I was out there in the late 90s, we were trenching the piles to verify depth and radionuclide content of the dross. They had a fairly consistent problem even back in the late 90s with homeless cutting through the fence and sleeping on the dross piles because no vegetation would grow in them and apparently bugs were pretty scarce too.

I was doing some surface water sampling. Don't recall what the contaminant was, but not a pleasant one. Walked up on a vato filling up his water bottle from the pond. I gave him a clean bottle of water and pointed him away from the facility.