The short but tough 3.5 mile race saw Britain's finest fell runners compete over a very wet and boggy course, and Waites demonstrated her dominance on the fells this season with a very strong performance to finish fifth in the women's race in a time of 34 minutes, 29 seconds.
Team mate Helen Fines was also in the top 10 in 35.05, followed by British vet 40's champion Sally Newman, who was 16th in 36.13, and Anne Johnson, and the Calder Valley women's team have now almost all but secured gold medals in both the British and English championships.
Another success story for the ladies was Gail Tombs who took first place for the veteran over 55 class in a time of 46.47.
In the men's race, Mounsey secured a fantastic 11th place of the 192 starters in 28.36 after some excellent climbing and a sprint finish to hold off the challenge of team mate Karl Gray who finished only four seconds behind in 12th position.
Todmorden-based Shaun Godsman also had a superb run to take 17th place in 29.14, only days after winning the Scammonden Dam team relay last Thursday, while Jason Stevens and Steve Smithies rounded up the men's team scoring with strong performances.
Individual racewinners were Rob Hope (Pudsey & Bramley) in 27.09 and Angela Mudge from Scottish club Carnethy in 32.38.
The next English championship event is the Kentmere fell race on July 20 in the Lake District.
Other Calder Valley finishers: Jason Stevens 61st in 32.15; Steve Smithies 80th 33.18; Jonathon Moore 99th 34.39; Steve Hunter 126th 36.12; Mark Goldie 133rd 36.26; 143rd Martin Huddlestone 37.19; 158th Dick Spendlove 38.47; 163rd Rod Sutcliffe 39.42; 166th Martin Whitehead 40.24; 168th Graham Lloyd 40.33; 169th Dave Culpan 41.04; 177th Dave Beston 42.19.
Ladies: 18th Anne Johnson 36.19; 38th Jackie Scarf 40.02; 46th Sharon Godsman 41.27; 49th Thirza Hyde 41.46; 53rd Linda Crabtree 42.22; 59th Claire Hanson 43.27; 61st Joanna Porter 43.57.