Officials from the Humane Society and SPCA rescued more than 30 caged dogs of different breeds, some pregnant, from an Ontario-Upland area puppy mill on Wednesday.
The dogs -- Shih Tzus, Yorkshire terriers, Pekingese, poodles, basset hounds, Chihuahuas, a husky and others -- were discovered standing in cages of their own feces and urine, said animal control officials.
Ranging in age from 3-weeks-old to 5-years-old, the animals were found without water, in small collapsible kennels, located in a barn without light or proper ventilation, according to the Inland Valley Daily Bulletin.
45-year-old Luis Reynoso and 42-year-old Flor Sanchez will be charged with misdemeanor animal cruelty.
Puppy sales were the primary source of income for the pair, and they were selling the animals for $100 each, say investigators.
Authorities were tipped off after receiving complaints that dogs were being illegally sold, and bred, in inhumane conditions, according to a news release.
Said Beth Les, Inland Valley Humane Society Supervisor of Animal Services, "They are very friendly dogs. They are happy to be out now," notes the Daily Bulletin.
Humane Society veterinarians in Pomona are evaluating and treating the dogs, and expect to put them up for adoption.
20 marijuana plants were also discovered on the property, but no arrests have reportedly been made in connection with the greenery, according to Ontario police Sgt. David McBride.
Police officers did arrest 27-year-old William Longsdon, however. He was found at the location and brought in on warrants for traffic violations. Officials were also called to the house for several code violations.
Lisa Brenner can be reached via Twitter @lisa_brenner