National Water Quality Research Articles

Cohabitant charophyte algal flora and its ecology in high-mountain lakes of the Artabel Lakes Nature Park (Gümüşhane, Turkey)

The composition of charophyte taxa and their habitat preferences in water bodies of the Artabel Lakes Nature Park were investigated on 15 August 2013 and 13 August 2016. A total of 73 taxa belonging to Conjugatophyceae (Zygnematophyceae) and Klebsormidiophyceae were recorded. The genera Cosmarium (37), Staurastrum (10) and Closterium (7) were most abundant. The partly unexpected presence of certain desmid taxa, i.e., taxa characteristic of eutrophic water, was recorded. Filamentous charophytes were represented by three taxa. The Willis curve for the distribution of species to genera had a trend line of R2 = 0.9123. Bioindication, statistical methods and comparative floristic results show that water in all of the studied lakes was fresh, of low-conductivity, circum-neutral and with little organic pollution. Four groups of lakes were identified as a result of statistical comparison of their environmental and biological variables. Bioindication results can be used as references for future monitoring of the lakes in protection of the species found in the Artabel Lakes Nature Park and can also be included in the National Water Quality Standard System of Turkey.

Water Quality Status and Heavy Metal Contains in Selected Rivers at Tasik Chini due to Increasing Land Use Activities

This study investigates the current water quality levels in the rivers around Lake Chini namely Jemberau River and Chini River during the dry season of 2018 and the rainy season of 2019. There are thirteen types of water quality parameters and seven types of heavy metals have been made experimental and classified based on the Water Quality Index which is from the Department of Environment (DOE-WQI) and the National Water Quality Interim Standard, Malaysia (INWQS). There are chemical and physical parameters that have been analyzed such as pH, temperature, turbidity, Electrical Conductivity (EC), Suspended Solids (SS), Total Suspended Solids (TSS), Dissolved Oxygen (DO), Biochemical Oxygen Demand (BOD), Chemical Oxygen Demand (COD), Ammonia Nitrogen (NH3-N), Potassium (K), Nitrate (N) and Phosphorus (P) were analyzed at the sample site and laboratory experiments were also performed. In addition, there are seven types of heavy metals that have been tested in the laboratory to determine the concentration of heavy metals contained in the water samples from the Chini River and the Jemberau River which are Copper (Cu), Chromium (Cr) Cadmium (Cd), Ferrum (Fe), Zinc (Zn), Manganese (Mn) and Lead (Pb) were tested using laboratory tools named as Atomic Absorption Spectroscopy (AAS). Based on the results of the study conducted according to the Water Quality Index (WQI), the water quality at selected locations which are Jemberau River and Chini River located near Lake Chini was classified as Class III which means water in the river requires extensive treatment to ensure water quality return clean and safe to use as drinking water to the locals in the future. According to the results of the study, there are activities conducted around Lake Chini which have caused water pollution which involves the release of heavy metals. Among the activities identified as the main cause of water pollution in Lake Chini are iron mining, agriculture, illegal logging and waste disposal from residential areas such as the National Service Training Program (PLKN).

Concentration of copper (Cu) in tinfoil barb fish (Barbonymus schwanenfeldii) of Kuantan River and Pinang River, Pahang, Malaysia

The study was conducted to determine of copper (Cu) in muscle tissue of Tinfoil Barn Fish (Barbonymus schwanenfeldii) and surface water at Kuantan River and Pinang River, Pahang. The study also determine the water quality parameters and water quality index (WQI). The fish was caught by using gill net and the were digest using acid digestion method and analysed by Inductive Coupled Plasma Micro Spectrometer (ICP-MS). The mean concentration of Cu in fish muscle was 0.5070 ± 0.01748 mg/kg for Kuantan River and 0.4732 ± 0.01807mg/kg for Pinang River which below the permissible limit set by Malaysia Food Act (MFA) and Food and Agriculture Organization (FAO). Cu concentration were 0.0052 ± 0.0004390 mg/kg in Kuantan River and 0.0017 ± 0.00006669 mg/kg in Pinang River. The level of Cu in both rivers were not harmful to the fish as the concentrations are below the permissible limit set by US Environmental Protection Agency (USEPA) and National Water Quality Standard (NWQS). There was no significant difference (p < 0.05) in the concentration of muscle tissue for Cu between rivers. In contrast, there showed a significant difference (p < 0.05) in the concentration of Cu in water between rivers. Kuantan River and Pinang River have been classified in Class II according to the Department of Environment (DOE) that the water must require conventional treatment for water supply purpose.

Purification of lake water using a PES hollow fiber membrane

Abstract Water scarcity combined with increasing populations will create a massive problem of obtaining clean water sources in the future. In this research, a newly developed polyethersulfone (PES) hollow fiber membrane from Universiti Sains Malaysia (USM) is used in water purification experiments using raw water samples obtained from Varsity Lake of the University of Malaya (UM) and a lake in Taman Jaya. The raw water samples undergo water quality characteristics tests to determine their class of water quality based on national water quality standards. Both raw water samples have been characterized and belong to class II of water quality. Subsequently, both raw water samples are used in water purification experiments with two types of filtration configuration, cross-flow and dead-end. Results show that water purification using the PES hollow fiber membrane can obtain water quality of class I for both samples. However, the presence of Escherichia coli can still be detected in both purified water samples. From the results obtained, the fabricated PES membrane is able to filter raw water samples of WQI Class II to WQI Class I quality and adhere to drinking water standards, and the dead-end filtration configuration provides the best filtration performance.

Harmonization of hygienic standards for chemical drinking water contaminants: relevance and main emphases

Drinking water of proper chemical and organoleptic quality, epidemically and radiologically safe and in sufficient quantity is one of the principal determinants of public health. Currently, the requirements for chemical water quality of the centralized drinking water supply in the Russian Federation are established by SanPiN 2.1.4.1074–01 and GN 2.1.5.1315–03. Despite the fact that both regulatory documents apply to drinking water, they contain different maximum permissible concentrations (MPC) of many chemicals. This ambiguity impedes the choice of standard values and leads to inconsistencies in drinking water quality assessment. Both national and foreign water quality standards have a single regulatory principle but the number and list of regulated chemicals and their standard values in different countries vary considerably. It is essential to develop hygienic standards that combine national and international experience in regulating drinking water quality. We compared Russian hygienic standards for chemical drinking water contaminants with appropriate foreign standards in order to resolve the issue of the necessity and possibility of their optimization.

Water Quality Index Score in River Water Treatment Plant at Upper Klang and Gombak River Catchment

National River Water Plants are located along upper Klang and Gombak river catchment to purify the polluted river using direct contact methods. As the current water quality situation in the study area is poor due to the contribution of anthropogenic activities on the water quality degradation in these urban rivers, the investigation was performed using the Water Quality Index. This paper gives the overall performance of RWTP using Water Quality Index (WQI) calculation methods. The WQI act as the basis of environment assessment towards to river water quality classification under Malaysia National Water Quality Standards. As an overall result, 57 percent from the total effluents achieve target Class II and above and another 43 percent achieve Class III and below regardless of two (2) RWTPs are under target from the average monitoring; RWTP Sg Gisir and RWTP Sg Sentul. However, the result for RWTP Sg Sentul is not yet conclusive since the monitoring duration is less than 2 years. Certainly, RWTP Sg Gisir needs to be taken into consideration for more frequent maintenance of the RWTP or upgrading of the RWTP oxidation tank as suggested in several MBBR/IFAS operation. As to improve the RWTP performance to score higher WQI, the introduction of recycling sludge in the biological tank so it will be a shorter reaction time. Additionally, the RWTP owner should implement a frequent maintenance work into RWTP component especially clarifier, sludge collector, biological oxidation tank and rubbish trap collector.

Analysis of the Integrated Water Resource Management in a Water Quality Management Area in the Philippines: The Case of Meycauayan-Marilao-Obando River System

This research evaluates the implementation and management of the Meycauayan-Marilao-Obando River System Water Quality Management Area (MMORS WQMA) in reference to the pillars of Integrated Water Resource Management (IWRM) using a multi-method approach. Research participants include representatives from regional regulatory agencies and local government units of seven cities and municipalities along the river system. Aside from ecosystem, institutional and socio-political drivers, the designation of MMORS as a WQMA was influenced by the shared common interest and endorsement of local stakeholders including financial support from international agencies. Also, an enabling policy environment that reflects IWRM pillars helped in the creation of MMORS WQMA. However, disparities in WQMA Governing Board (GB)’s and the local government units’ (LGUs) level of awareness and actual level of implementation of functions are observed, hence, the need for integration. The lack of a guiding system or framework in monitoring, evaluation and information management hinders better integration among the different agencies and LGUs in the MMO WQMA GB. Also, lack of financial, human and technical resources limit performance of the GB. Improving mechanisms may include approval of the National Water Quality Management Fund; development of financial and annual plans (with short-term targets), collaboration among GB members and capacity-building.

Assessment of Spatial Variability and Temporal Dynamics of Dissolved Organic Matter (DOM) at Lower Kinabatangan River Catchment, Sabah.

The spatial and temporal variability of dissolved organic matter (DOM) characteristics and surface water quality in the Lower Kinabatangan River Catchment were determined between October 2015 and May 2016. The objectives of this study were: (i) to distinguish the DOM absorption characteristics and physicochemical quality of surface water draining from different types of land use: oil palm plantation (OP), secondary forest (SF) and semi-natural vegetation (SV); and to examine its temporal variations during dry and wet periods. The collected physicochemical parameters data was analysed and classified based on the Malaysian National Water Quality Standard (NWQS). Findings indicated all the parameters fall into Class I, except for pH, total suspended solids (TSS) and concentration dissolved oxygen (DO). Linear discriminant analysis has been applied to distinguished the physico-chemical and absorption DOM properties data into mutually-exclusive spatial and temporal groups. Interestingly, the pH, DO and total nitrogen values were exhibited as dominant parameters at SV during both low and high rainfall periods. The dominance of these parameters suggested that the spatially and temporally varied water quality were influenced by both natural processes (e.g precipitation rate) and anthropogenic factor (e.g land use change). Whereas, both absorption coefficients (a340) and spectral slope (S275-295) were more dominant at SF and OP respectively. This might be due to increasing terrestrial DOM loadings as well as significant degradation of DOM via microbial and/or photochemical reaction.

Fate of Urban Groundwater in Shallow Confined Aquifers. Case Study of Baldia Town, Karachi, Pakistan

A study was carried out to assess the groundwater quality for drinking purpose in Baldia Town, Karachi. For this purpose, groundwater samples (n = 18) were randomly collected from various depths (> 100 feet) through boring wells after monsoon season. Data revealed that except two (BT-5, 8) which were turbid and smoky, rest of the samples were colorless, non-turbid and sweet in taste. Groundwater temperature fluctuates between 19-26 ˚C. The pH varies between slightly acidic to slightly basic (range: 6.8-7.3) where two third of total samples have pH < 7. All the samples have very high TDS content (range: 1240-16910 mg/L; mean: 6832 mg/L) which exceeded the national drinking water quality standard (1000 mg/L) set by PCRWR. Hardness values varied in the extreme range (1000-9500 mg/L; mean: 2366 mg/L). Relative abundance of major cations follows the order of Mg > Ca > Na> K while anions varied in the order of HCO3> SO4> NO3> Cl. Dissolved Fe+3 (mean: 0.01 mg/L) varies within WHO permissible limit (0.3 mg/L) while Mn showed concentration < 0.01 mg/L. Concentration of trace elements declined in the order of Ni > Zn > Cr > Co. It is concluded that groundwater of study area not fit for drinking purpose. It is strongly influenced by semi-arid climate and water rock interaction which is manifested by geochemical signatures of limestone (Ca, Zn) and clays (Ni, Co, Cr). Due to confined aquifer system the anthropogenic contamination is not significant.

Bioconcentration of Cadmium and Nickel in Mud Clams (Polymesoda expansa) at Sungai Balok, Pahang

Bioaccumulation of heavy metals in mollusc is one of the crucial topics in environmental pollution, toxicology and food safety as it gives great impact on the ecosystem and human health. This study was conducted to identify the level of Cadmium (Cd) and Nickel (Ni) in the soft tissues of mud clams (Polymesoda expansa) and in water samples at Sungai Balok, Pahang. The mud clams and water samples were collected from five sampling stations in Sungai Balok. Sampling was carried out during dry season (May 2018) and wet season (January 2019). The mud clams’ tissues were digested and analysed with inductively coupled plasma-mass spectrometry (ICP-MS). The obtained results revealed that the mean level of Cd and Ni in tissues of mud clams during wet season (0.127±0.104 and 0.909±0.482)mg/kg were higher compared to dry season (0.031±0.014 and 0.245±0.106)mg/kg respectively. Both of Cd and Ni concentrations in the mud clams were found below the limits stated by FAO/WHO (1984), MFA (1983) and FSANZ (2002). There was no significance different (p<0.05) between Cd and Ni in both seasons. Meanwhile, the concentration of Cd in water samples from Balok river during both seasons were the same, which were (0.0001±0.001)mg/kg respectively, whereas for Ni, the concentration in dry and wet season were slightly different with value of 0.0088±0.001mg/kg and in Jan 2019 is 0.0062±0.001ppm. All the water samples from both seasons had Cd and Ni concentrations within Malaysia’s National Water Quality Standard NWQS limits.

Distribution of Nutrients in Kelantan River Basin, Malaysia

This study aims to assess the influences of land use on nutrient concentrations in Kelantan river basin (southern South China Sea), in addition to the effects of monsoon seasons on nutrient concentrations. The dissolved inorganic and organic nutrients in this river were demonstrated to be related to land use during the study period. The middle and lower reaches of the river, which are surrounded by urban areas with high population densities, have enhanced levels of both dissolved inorganic and organic nutrients. Increased rainfall decreased most of the nutrient concentrations in Kelantan river basin, probably due to the dilution effect. According to The Malaysia National Water Quality Standards (NWQS) classification, the mean concentrations of dissolved inorganic phosphorus, nitrite and nitrate in Kelantan river basin fell into Class 1, which is considered at natural levels in the water column.

A global scan of how the issue of nutrient loading and harmful algal blooms is being addressed by governments, non-governmental organizations, and volunteers

Abstract Harmful algal blooms (HABs) in aquatic ecosystems are of concern worldwide. This review deals with how jurisdictions around the world are addressing this water quality issue to inform recommendations regarding nutrient loading and HABs in Missisquoi Bay-Lake Champlain and Lake Memphremagog; transboundary lakes located in the USA and Canada that suffer from symptoms of eutrophication. A global scan of the literature resulted in the consideration of 12 case studies of large water bodies within large watersheds, excluding in-lake geoengineering approaches. Although all of the systems experience excessive nutrient loading, they vary in two key ways: sources of nutrients and manifestations of eutrophication ranging from HABs, to limited recreational uses, to the additional complexity of internal loadings and fish kills, up to drinking water shutdowns. The case studies were analyzed with respect to four categories of approaches, namely: (i) regulatory; (ii) incentive-based; (iii) risk mitigation; and (iv) outreach, engagement, and educational. We found that the management frameworks are based on integrated watershed management planning and national standards. National water quality standards, however, are not stringent enough to prevent HABs. Overall, identified case studies did not successfully remediate HABs, they simply managed them.

Quality criteria for groundwater use from a rural part of Wanaparthy District, Telangana State, India, through ionic spatial distribution (ISD), entropy water quality index (EWQI) and principal component analysis (PCA).

The present study region comprises granite and granite gneisses aquifer system constituted by Precambrian rocks. Groundwater is the primary source for drinking and other domestic purposes. Many developing regions in the world suffer from lack of safe drinking water. A rural part of Wanaparthy District in Telangana State, India, is one of them. For this reason, the groundwater samples collected from the study region were analyzed for pH, TDS, Ca2+, Mg2+, Na+, K+, HCO3-, Cl-, SO42-, NO3- and F- and evaluated groundwater quality criteria, using ionic spatial distribution (ISD), entropy water quality index (EWQI) and principal component analysis (PCA). The ISD maps show that some locations are not suitable for drinking purpose due to exceeding concentrations of TDS, Mg2+, Na+, K+, HCO3-, Cl-, NO3-and F-, compared to those with national drinking water quality standards. According to the EWQI, about 3%, 47%, 43% and 7% of the total area come under the excellent, good, medium and extremely poor water quality types for drinking purpose, respectively. Chadha's diagram classified the area as carbonate hardness (63%), non-carbonate alkali (17%), carbonates alkali (13%) and non-carbonate hardness (7%) zones. The binary diagrams (Na+ + K+ vs TC, Na+ vs Ca2+ and HCO3- vs TC) indicate that the quality of groundwater is controlled by influences of water-rock interactions, mineral weathering and dissolution, ion exchange and evaporation as well as the impact of anthropogenic sources. The PCA transferred the chemical variables into three principal components accounts for about 81% of the total variance. The high positive loadings of PC1 (Cl-, TDS, SO42-, Na+, NO3-, Mg2+ and HCO3-) stand for processes of silicate weathering and dissolution, ion exchange and evaporation, and the influence of domestic waste waters, irrigation return flows and chemical fertilizers on the groundwater system, the PC2 (F- and pH) signifies the alkaline nature of groundwater, which causes fluorosis, and the PC3 (K+) is a result of potassium fertilizers. The study helps to take remediate measures at a specific site and hence suggests the treatment of water before its drinking and also the recharge of the aquifer artificially to improve the groundwater quality.

Internet-based applications for interrogating 50 years of data from the South African national water quality monitoring network

ABSTRACTNational and regional water quality monitoring networks have been operated in South Africa since the early 1970s. These originally had text-based inventories that were convenient for specialists who were familiar with the national networks and knew the locations of their sites of interest. However, within two decades the networks had expanded in geographical extent and variables monitored to such an extent that users needed spatial context in order to locate sites that fitted their information requirements. Mapping applications running on the Internet, such as Google Earth and Leaflet, form the foundation of a system for providing online inventories and summaries of the data available on the water quality database. The interfaces were constructed using available software, mainly ArcInfo and R. A recent concern is a decrease in the collection of water quality data, which is reducing the value of data summaries for water resource management.

A New National Water Quality Model to Evaluate the Effectiveness of Catchment Management Measures in England

This investigation reports on a new national model to evaluate the effectiveness of catchment sensitive farming in England, and how pollution mitigation measures have improved water quality between 2006 and 2016. An adapted HYPE (HYdrological Predictions for the Environment) model was written to use accurate farm emissions data so that the pathway impact could be accounted for in the land phase of transport. Farm emissions were apportioned into different runoff fractions simulated in surface and soil layers, and travel time and losses were taken into account. These were derived from the regulator’s ‘catchment change matrix’ and converted to monthly load time series, combined with extensive point source load datasets. Very large flow and water quality monitoring datasets were used to calibrate the model nationally for flow, nitrogen, phosphorus, suspended sediments and faecal indicator organisms. The model was simulated with and without estimated changes to farm emissions resulting from catchment measures, and spatial and temporal changes to water quality concentrations were then assessed.

Bioensayos Ecotoxicológicos con la microalga Pseudokirchneriella subcapitata para medir el impacto de los metales en ecosistemas lóticos utilizando técnicas de microscopía confocal de fluorescencia

Un bioensayo ecotoxicológico rápido y sencillo permite una estimación confiable del estado de los ecosistemas lóticos de las cuencas de Camaná, Majes y Colca localizados en la Región en Arequipa-Perú en seis estaciones de muestreo (Taparza, Grande, Majes1, Majes2, Camaná1 y Camaná2), mediante la inhibición del crecimiento de la microalga Pseudokirchneriella subcapitata a las 24, 48 y 72 horas y la Concentración Efectiva Media (CE50), a las 72 horas en comparación con los Estándares peruanos de Calidad Ambiental (ECA) y las directrices de la calidad del agua de la Organización Mundial de la Salud (OMS). Se observó que en los puntos de muestreo de Majes1 y Majes2 se superaron los valores de coliformes termotolerantes al aluminio, manganeso, hierro y sólidos suspendidos totales (SST) comparados con los valores de ECA y directrices de calidad del agua de la OMS, con una CE50 categorizándolos como moderadamente tóxicos. En este artículo, se utilizaron técnicas de microscopía confocal de fluorescencia para observar el impacto de los estándares de la EQS y los de la OMS, proponiendo como modelo la aplicación de técnicas microscópicas, con amplias perspectivas para futuros estudios de ecotoxicidad por metales.

The proposed change to the definition of “waters of the United States” flouts sound science

The U.S. Environmental Protection Agency (EPA) and Army Corps of Engineers (hereafter, “the agencies”) have issued a proposed rule (1) that would remove Clean Water Act (CWA) protections from more than half of wetlands and one-fifth of streams in the United States (2). This move sharply contrasts with reports indicating that US waters remain threatened by storms, droughts, contaminants, algal blooms, and other stressors. Even the EPA’s National Water Quality Inventory detected poor conditions in 46% of stream and river miles and 32% of wetlands (3). In short, the proposed rule does not reflect the best-available science and, if enacted, will damage our nation’s water resources. A proposed rule under consideration by the US federal government does not reflect the best-available science and, if enacted, will damage the nation’s water resources. Image credit: Shutterstock/Martha Marks. Despite the CWA’s mandate “to restore and maintain the chemical, physical, and biological integrity of the Nation’s waters” (4), controversy persists over jurisdiction. For decades, the protected “waters of the United States” (WOTUS) included traditionally navigable waters (TNWs), such as large rivers, lakes, and territorial seas, as well as waters meaningfully connected to or affecting the integrity of TNWs. Operationalizing this connection has become a flashpoint for the science and politics of water protection. Connectivity among waterbodies was the cornerstone of the Obama administration’s Clean Water Rule (CWR), which reflected a state-of-the-science synthesis of more than 1,200 scientific publications [known as the “Connectivity Report” (5)], input from 49 experts, and a rigorous review by a 25-member panel of the EPA’s Scientific Advisory Board (SAB) (6). Since then, scientific evidence supporting the 2015 CWR, and hence contradicting the new proposal, has only accumulated, especially as related intermittent (i.e., flow seasonally) and ephemeral (i.e., flow periodically, after precipitation events) streams, riparian and floodplain zones, and non-floodplain wetlands … [↵][1]1To whom correspondence may be addressed. Email: sullivan.191{at}osu.edu. [1]: #xref-corresp-1-1

Non-floodplain Wetlands Affect Watershed Nutrient Dynamics: A Critical Review.

Wetlands have the capacity to retain nitrogen and phosphorus and are thereby often considered a viable option for improving water quality at local scales. However, little is known about the cumulative influence of wetlands outside of floodplains, i.e., non-floodplain wetlands (NFWs), on surface water quality at watershed scales. Such evidence is important to meet global, national, regional, and local water quality goals effectively and comprehensively. In this critical review, we synthesize the state of the science about the watershed-scale effects of NFWs on nutrient-based (nitrogen, phosphorus) water quality. We further highlight where knowledge is limited in this research area and the challenges of garnering this information. On the basis of previous wetland literature, we develop emerging concepts that assist in advancing the science linking NFWs to watershed-scale nutrient conditions. Finally, we ask, "Where do we go from here?" We address this question using a 2-fold approach. First, we demonstrate, via example model simulations, how explicitly considering NFWs in watershed nutrient modeling changes predicted nutrient yields to receiving waters-and how this may potentially affect future water quality management decisions. Second, we outline research recommendations that will improve our scientific understanding of how NFWs affect downstream water quality.

Stormwater runoff quality on an urban highway in South Africa

Roadway sediment and stormwater runoff were sampled from a 15 km section of the R300 freeway located in the greater Cape Town area, South Africa. Grab samples were collected over a four-month period in 2016 and analysed for metals, hydrocarbons and nutrients. The metal concentration profiles were similar in sediment and runoff samples. The primary pollutants identified in the highway runoff were aluminium, copper, lead, manganese, nitrogen, phosphorus, zinc, total suspended solids (TSS), and oil and grease. The concentrations of each of these elements, barring lead, exceeded the national effluent water quality guidelines. Large volumes of macro pollutants such as cigarettes, plastic and packaging were also observed. The results of this research indicate that Sustainable Drainage Systems (SuDS) should be used in conjunction with highways, particularly where runoff may influence a sensitive or valuable aquatic ecosystem, as it can be a significant non-point source of pollution.

Determining Water Quality Status in University of Indonesia Depok Campus Lakes with STORET Method

The University of Indonesia has six artificial lakes around Depok Campus Area, namely Lake Kenanga, Agathis, Mahoni, Puspa, Ulin, and Salam (KAMPUS). These campus lakes have an area of about 17.5 hectares with an average depth varying between 1.5-3 meters with capability store waters up to 52,500 m3 of water. The University of Indonesia has its commitment to observe and evaluate the environmental quality as a part of an environmental monitoring program every semester. The observation data of lake water quality can provide information about parameters which has exceeded the environmental quality standard only, but not for the whole information about its water quality status. STORET Method is the common method which can be used to determine the water quality status. In principle, it compares the data of water quality measurement against national water quality standard appropriate with its purpose to determine the status of water quality. Based on the measurement data from 2017 to 2018, we obtained that Kenanga Lake, Agathis Lake, Ulin Lake, and Salam Lake has A Class quality status and meet the quality standard. However, Mahoni Lake and Puspa Lake are in C Class moderately polluted.