ACTH stimulation test. Base 9.8 mcg/dl 30 min: 28.7 and 60 min: 37.3 is this normal?

Yes. All laboratory results need to be interpreted in the clinical context and the doctor who ordered the tests is usually in the best position to do that. Talk to the doctor who ordered the tests. Having said that, your results are in the normal range. Visit this site for more info:
https://medlineplus.gov/ency/article/003696.htm.