One of the streams that crosses paths with Waiahole Ditch is Waikele Stream, which joined Waikakalaua Stream. Waikakalaua Stream was recently tested, and the health of this stream might help to shed some light on the state of Waiahole Ditch. Some of the strange results include: the pH levels sometimes were much higher than the normal range of 6 to 8, reaching 9.22, which is increasingly alkaline compared to normal pH levels. pH levels can be affected by the location of the stream and original source, and a main factor for change is photosynthetic action in the stream, which is increased with pollution, showing the presence of pollution. Another irregularity is the test results for ammonium. The typical content in surface water is generally lower than 1 mg/L. In the results, this was true sometimes, but the values of 2.0, 4.7, 1.2, 1.5, and 1.2. Some are close to one, but others show that there was an increase in some factor. Dissolved oxygen, which is necessary for aquatic life, is normally between 5-6 is required for growth and activity. Most of the levels found fell at least close, but levels of 0.3, 0.2, 3.4, and 10.0 also appeared. This is not optimal, especially because DO levels below 2 ppm do not support fish.