Wahlco Environmental Systems Inc.: The Santa Ana...

Wahlco Environmental Systems Inc.: The Santa Ana manufacturer of air-pollution control and power efficiency equipment reported a first-quarter loss of $3.6 million, or 20 cents a share, contrasted with a profit of $202,000, or 1 cent a share, for the year-earlier period. Revenue declined 22%, to $16.4 million from $21.1 million.