Here are links to some other aquatic therapy and hydrotherapy resources which might be of interest to aquatics rehabilitation professionals such as you:

The Physiologic Effects of Immersion
History and Justification of Aquatic Therapy (Becker)
APTA Medicare Fee Calculator
Poolside Ortho/Neuro Cheatsheet (43 pgs/suitable for laminating)
ADA Pool Lift Compliance Info
OSHA Indoor Air Quality Standards
NIH Recommendations on Childhood Asthma and Chloramines