Um nope---The 2012 rebuild DID install a circulation ozone system — but NOT a full filtration system.
There are NO sand filters, cartridge filters, chemical treatment, purification loop or a debris filtration system
Without those, you cannot legally use raw Tidal Basin water.
The EPA gets pissy---
This is straight from EPA civil penalty authority under:
42 U.S.C. §300g‑3 (SDWA enforcement)
40 CFR §19.4 (civil monetary penalty inflation adjustments) $60,000 a DAY fines.
EPA Surface Water Treatment Rule (SWTR)
Under the Safe Drinking Water Act, any surface water (rivers, lakes, tidal basins) must be fully treated before it can be used in a public‑facing water feature where people may be exposed.
EPA defines surface water as requiring:
filtration
disinfection (chlorine, UV, ozone plus filtration)
turbidity removal
pathogen removal (Giardia, Cryptosporidium, viruses)
The reflecting pool does NOT have any of that.
Citation: 40 CFR §141.70–141.75 (Surface Water
Treatment Rule)