Pchansky Spring is well known to the residents of the western part of the Ak-Tal district and geologists in Kyrgyzstan. Its fame among the local population is due to the elevated water temperature (20°C) and high flow rate (about 15 l/s), as well as the memorable dome-shaped orifice with a diameter of 0.5 m; for geologists, it is notable as the only spring with anomalous temperature and water composition from the largest Talas-Fergana fault in the region, which defines the geological boundary between the areas known as Northern and Southern Kyrgyzstan.
Pchansky Spring is located on the left bank of the floodplain of the river of the same name, 13 km from its confluence with the Arpa River and 15 km southwest of the village of Kosh-Debe.
The modern water has a calcium-sodium bicarbonate-chloride composition with a dry residue of 1419 mg/l, containing slightly more than 150 mg/l of free carbon dioxide and does not deposit travertine. Interestingly, in the composition of dissolved gases, alongside carbon dioxide, there is 27% nitrogen and almost 0.09% helium, which is atypical for such waters. Among trace elements, lithium, molybdenum, and strontium are present in significant amounts, while the silicon dioxide content is 16 mg/l.
From a balneological perspective, there are no indicators in the water of Pchansky Spring that would classify it as therapeutic, but the noticeable peculiarity of the source lies in the fact that its water contains a considerable amount of trace elements.
