Water Nav Home Our Services Environment Water This Area offer to its clients the following services among other: sampling, spring water and seawater evaluation and analysis, wastewater and industrial solid waste (RISES) LinkedIn Twitter Facebook share Sampling Chemical Analysis Industrial Waste Water (RILES) Industrial Water Waste Sampling: activity developed under the Official Chilean Standard NCh 411/10 of 2005 DS 609: Sewer Unload. Physical Chemical Analysis DS 90: Surface Water Masses Unload. Physical Chemical Microbiological Analysis DS 46: Underwater Unload. Physical Chemical Analysis