Peninsula Energy's low-pH in-situ field demonstration yields further improved uranium results Field operations have run consistently and the response has indicated favourable trends with no further field layout adjustments required. The recovery stream appears to be sufficiently close to the target range of 450 to 600 mv to support higher uranium production grades. Peninsula Energy Ltd’s (ASX:PEN) (OTCMKTS:PENMF) (FRA:P1M) low-pH in-situ recovery (ISR) field demonstration at the flagship Lance Project in Wyoming, US, has yielded further improved production results. The pH and free acid concentration of the recovery composite stream has reached target levels and with an Oxygen Reduction Potential (ORP) level consistent at around 400 mv, PEN believes the recovery stream appears to be sufficiently close to the target range of 450 to 600 mv to support higher uranium production grades.