WWII Memorial Conservation & Decontamination Protocol

1. Incident Site & Architectural Zone Zone Active

Load Historical / Emergency Preset:

Direct Architectural Selector Rainbow Pool (500k Gal)

Aquatic Fountain Circuit

Kershaw Granite Masonry

Architectural Bronze

Gold Star Field

Target Architectural Element

Primary Contaminant

Stone / Substrate Porosity

Surfactant Level 48 ppm

Ambient Temp (°F) 78 °F

Aquatic Volume (Gal) 500,000

Graffiti Area (sq ft) 35 sq ft

2. Hydraulic Risk & Chemical Dosing Telemetry

Pump Cavitation Risk 84% ● High Impeller Hazard

Silicone Defoamer Dosing 18.2 L ● Food-Grade PDMS 10%

Sand Filter Backwash 3.5 Cycles ● 14,000 Gal Effluent

Poultice Dwell Window 12.5 hrs ● Kaolin + MEK/DPM

NPS Historic Stone Preservation Envelope 100% Non-Destructive

Max Hydro-Pressure Ceiling:

< 350 PSI (Fan Tip 40°)

Protects Kershaw quartz matrix

Max Water Temp:

< 135 °F

Prevents thermal shock spalling

Total Effluent Neutralization:

6.8 - 7.4 pH Target

Complies with DC Water Runoff

Engineering Remediation Log SYNCED

Surfactant foaming in Rainbow Pool threatens 4 primary recirculation pumps with severe cavitation. Apply 18.2L food-grade polydimethylsiloxane emulsion at suction manifold, isolate fountain jets, and execute 3 backwash cycles before masonry poulticing.