Assessment Of Drinking Water Quality Research Articles

Drinking water quality assessment from water dispensers in an educational institution

Abstract Water dispensers are commonly used in educational institutions in developing countries. Assessment of factors influencing drinking water quality from this source is important due to its potential to cause waterborne diseases and other health risks. This study aimed to assess microbial contamination and the factors affecting drinking water quality from water dispensers at Walailak University, Southern Thailand. Drinking water samples from 60 water dispensers of different type-brands were collected and tested for physicochemical and microbiological parameters by following WHO Drinking Water Quality guidelines. Also evaluated by questionnaires were hygienic standards and maintenance of water dispensers. The physicochemical analysis of all water samples did not exceed the reference values of the drinking water standard; the hardness value in only 13.3% of samples was slightly higher than the reference limit. The microbiological results indicated that total coliform and fecal coliform bacteria were found in 16.67% and 8.33% of total samples, respectively. Escherichia coli was not detected in any of the water samples. The assessment of factors influencing drinking water quality, location and pathogen source around water dispensers, hygienic environment, and maintenance of water dispensers had a significant effect on drinking water quality.

Indexing methods and chemometric analysis of selected metals and metalloids for drinking water quality assessment in Upper Silesia region, Poland

ABSTRACT The research focused on the determination of selected metals in tap water from Upper Silesia region (Poland) and the assessment of risk for consumers. The heavy metal pollution index and metal index were used to characterise the potential risk of heavy metals in drinking water. ICP-MS and ICP-OES have been used to measure the concentrations of Co, Mn, Cu, Ni, Pb, As, Zn and Sr. Chemometric analysis of the resulted data was accomplished using principal component analysis and cluster analysis, emphasising both similarities between the composition of the analysed samples and outliers. It was suggested that chemometric analysis can be used as a decision tool for necessary corrective action in the water distribution network, since it emphasises in a fast and intuitive way the samples with unusual chemical composition for a given context. To the best of our knowledge, such research in this area has not yet been carried out.

MONITORING AND ASSESSMENT OF DRINKING WATER FOR SAFE WATER SUPPLY IN RURAL HARYANA TERTIARY CARE HOSPITAL

Background-The aim of our study is to determine the drinking water quality monitoring and assessment of safe water supply in tertiary care hospital. Water samples which are collected from different sites of Adesh Medical College and Hospital, Shahabad, Haryana were processed. Material and methods- Most Probable Number (MPN) test was done to detect the coliform bacteria in drinking water, samples were collected from different sites of AMCH, bacterial isolate was identied by culture, colony morphology, Gram's staining and biochemical characterization of bacteria. Results- Out of 40 samples of drinking water 7(17.5%) were positive in which coliform bacteria were present, while 33(82.5%) were negative. In which 1(14.2%) of the total water samples were contaminated with mix growth organism, 1(14.2%) harbored Klebsiella sp., while 5(87.5%) among 7 water samples were highly contaminated with E.coli species. Out of 7 positive samples, 4(57.1%) water sample were satisfactory, 1(14.2%) were unsatisfactory sample and 2 (28.5%) were suspicious samples. Conclusion- On the basis of the results obtained, the quality analysis revealed that most of water samples were satisfactory and were not contaminated with coliforms and various pathogenic bacteria. The water cooler samples showing positive results have E.coli while less of Klebsiella species. Therefore, we suggest that all the water sources of drinking water should be properly sanitized, continuously monitored and bacterial load should be estimated on daily basis.

Efficiency of Treatment Plant and Drinking Water Quality Assessment from Source to Household, Gondar City, Northwest Ethiopia.

Introduction Access to safe drinking water is essential to health, and it is a basic human right. However, drinking water treatment plant efficiency and its water quality are not well investigated in low-income countries including Ethiopia. Methods A laboratory-based cross-sectional study was conducted among 75 water samples. Data analysis was carried out using SPSS version 22 to generate descriptive statistics, and one-way ANOVA was used to test statistically significant difference. Results Physicochemical qualities of the water samples from tap water sources were found to be pH (6.88 ± 0.05), turbidity (5.15 ± 0.006 NTU), electrical conductivity (170.6 ± 0.1 μS/cm), residual chlorine (0.19 ± 0.003 mg/L), and fluoride (1.17 ± 0.009 mg/L). The removal efficiency of turbidity, total hardness, and nitrate was found to be 94.4%, 52.3%, and 88.7%, respectively. Removal efficiency of the treatment plant for total coliforms up to 91.6% (15 ± 0.26 CFU/100 mL in tap water) and faecal coliforms up to 99% (1.51 ± 0.03 CFU/100 mL in tap water) was recorded. Parameters of pH, temperature, and faecal coliform were statistically significant different at p < 0.05 in tap water source. The overall efficiency of the treatment plant (68.5%) and the water quality index (76) were recorded. Conclusion Based on the results, some of the investigated parameters of water quality (turbidity, residual chlorine, total coliform, and faecal coliform) were found to be not within the permissible limits of WHO guideline values for drinking water quality. The water quality index of the water samples was categorized under good water quality. To adequately treat drinking water and improve the treatment plant, adequate preliminary treatments like screening to reduce the incoming organic loading, proper chlorination of the drinking water system, and frequent monitoring and maintenance of the treatment plant system are required.

Groundwater vulnerability assessment using water quality index (WQI) under geographic information system (GIS) framework in parts of Uttar Pradesh, India

Groundwater resources are affected in principle by three major activities. First is excessive use of fertilizers and pesticides in agricultural areas. The second is untreated/partially treated wastewater to the soil/water and the third one is excessive pumping and improper management of aquifers. Due to large-scale urban growth which has triggered domestic effluents and on the other hand industrial development activities has resulted in the generation of a copious volume of industrial effluents directly and indirectly contaminate the groundwater. In a drinking water quality assessment, the decision-making based on water quality data is a crucial issue because several parameters compromise its quality. There has been considerable advancement in the field of water quality assessment particularly based on the principle of the water quality index (WQI) using modified concepts. The study area which includes part of Varanasi and Sant Ravidas Nagar districts are centers for urban growth along with industrial setup in Uttar Pradesh, India. Water quality index (WQI) is an index reflecting the composite influence of different water quality parameters which is considered for calculation. 50 numbers of groundwater samples were collected from various locations in the study area as per the standard protocol prescribed by the American Public Health Association (APHA). Twenty-two water quality parameters have been considered for the calculation of water quality index viz. pH, electrical conductivity (EC), total hardness (TH), total dissolved solids (TDS), alkalinity, sodium (Na+), potassium (K+), calcium (Ca2+), magnesium (Mg2+), nitrates (NO3−), bicarbonate (HCO3−), chlorides (Cl−), sulphates (SO4−), fluorides (F−), chromium (Cr), zinc (Zn), copper (Cu), manganese (Mn), iron (Fe), nickel (Ni), lead (Pb) and cadmium (Cd). The Bureau of Indian Standard has been considered to assess the suitability of groundwater for drinking purposes and the calculation of the water quality index (WQI). Correlation study among various physicochemical properties also reflects certain significant negative relationships. The current study shows that 50% of the collected water samples are non-suitable for the drinking water category and the rest is falling under the good, moderate, poor, very poor as per the Water Quality Index (WQI) classification. The present study is quite helpful for the proper planning and management of available water resources for drinking purposes.

Health risk assessment in different age-group due to nitrate, fluoride, nitrite and geo-chemical parameters in drinking water in Ahmadpur East, Punjab, Pakistan

The main objective of this study was to estimate the drinking water quality and public health assessment due to nitrate, nitrite and fluoride contaminations in Ahmadpur East, Punjab, Pakistan. Thirty-six drinking water samples were collected in the study area. Concentrations of geo-chemical parameters (pH, TDS and EC), nitrate, nitrite and fluoride were examined. The mean values of concentrations of nitrate, nitrite and fluoride were found 0.4197, 0.006 and 0.67 mg/L, respectively. Mean values of potential of hydrogen (pH), total dissolved solid (TDS) and electrical conductivity (EC) were found 7.28, 630 ppm and 1257 μS/cm, respectively. Health risk assessment was estimated by chronic daily intake (CDI), hazard quotient (HQ) and Total Health Index (THI) due to fluoride, nitrate and nitrite for infants, children, teenagers and adults. The CDI and HQ of fluoride estimated greater permissible limit in different age groups than nitrite and nitrate in urban region of the study area. THI in infant and children determined higher than other age groups in the urban region. The infant and children suffer higher health risk than other age groups due to fluoride, nitrate and nitrite. There is need to monitor the drinking water quality on repetitive and habitual basis. Reverse osmosis membrane filtration and adsorption technique should be adopted on domestic level to reduce the contaminations of drinking water.

Enhancing Access to Safe Drinking Water in Remote Fijian Communities: Modeling and Implementing a Pilot Rain-Rank Disinfection Program

Frequent cases of gastroenteritis, resulting in several fatalities within remote communities in the Yasawa Islands, Fiji, prompted an urgent drinking water quality and supply assessment. This proje...

Drinking water quality assessment using Principal Component Analysis: Case study of the town of Souk Ahras, Algeria

Water quality can be considered a key contributor to both health and disease for humans. To obtain more advanced information about water quality the principal component analysis (PCA) was applied using the drinking water supply network data during four seasons in 2018 in Souk Ahras city/Algeria in order to extract principal factors that can explain the quality of drinking water. These factors aim to bring together the main explanatory elements of the water quality and their order of responsibility on the quality of the water through physicochemical parameters measured in situ. During the course of study 14 parameters were used for the characterization of the quality of drinking water in Souk Ahras city, these parameters were replaced by six (6) principal components explaining approximately 65.33% of the variance of the data. The study highlights two main problems, the strong signs of the presence of harmful germs and probably malfunction in part of the equipment of the processing and distribution facilities; and second, amount of the residual chlorine in water

Drinking water quality assessment in distribution networks: A water footprint approach

Reliable water quality monitoring and assessment can help to minimize the risk of water quality failures (WQFs) in water distribution networks (WDNs). Indexing-based water quality assessment approaches classify water quality based on contaminant concentrations. However, the resultant indices do not provide any information on trade-offs between water quality and quantity. The need to preserve the earth's natural resources has drawn attention to the use of footprint approaches to assess water quality. This paper uses a water footprint concept to develop a grey water footprint (GWF)-based framework for water quality assessment. A probabilistic human health risk assessment (HHRA) is also incorporated in the GWF approach to address the uncertainties. The proposed framework was implemented by considering the disinfection by-products (DBPs) in WDNs as a case study, and the results were compared with those generated using the Canadian Water Quality Index (CWQI) approach. Six drinking water quality management strategies (DWQMSs) were evaluated. The results from both approaches were correlated, indicating GWF as an alternative to CWQI. The assessment results showed that DWQMSs having groundwater as a source deliver better water quality in terms of DBPs occurrence compared to those using a surface water source. The GWF approach helps categorize water quality by estimating the theoretical volume of fresh water required to dilute the contaminant concentrations to below threshold levels. Water stakeholders can apply this framework considering any contaminants to drinking water quality using a quantitative water footprint scale and develop a trade-off between water quality and quantity management.

Assessment of drinking and irrigation water quality using WQI and SAR method in Maâder sub-basin, Ksour Mountains, Algeria

Domestic and agricultural activities in arid regions of Ksour Mountains which stretching across the provinces of Naâma and El Bayadh in Algeria, depend mostly on groundwater due to the region’s climate, which is characterized by low rainfall and high evaporation. The paper aims to assess the suitability of groundwater for drinking and agricultural purposes in the Maâder sub-basin. The data used in this study have been collected from twenty-one (21) groundwater samples from the field. In the laboratory, the major anions and cations were analyzed, and other physicochemical parameters such as temperature, potential hydrogen (pH), electrical conductivity (EC), and total dissolved solids (TDS) were measured in situ. The assessment of water potential for drinking uses was evaluated using the water quality index (WQI). While the evaluation of water quality for irrigation purposes was assessed using the sodium adsorption ratio (SAR). The results revealed that all water quality parameters were within the Algerian standards’ permissible limit. Most of the concentration falls within the allowable limits of World Health Organization standards, except for some samples. The water quality index (WQI) of the study area ranged from 44.71 to 80.67, which means that the groundwater falls into the category of excellent and adequate water. The SAR values varied from 1.06 to 2.78, indicating that all groundwater samples are suitable for irrigation purposes. The obtained spatial distribution maps of WQI and SAR show that groundwater's best quality is located in the northeast part of the study area, and the water quality exhibits a gradual increase in concentration from northeast to southwest. This work helps the decision makers better manage water resources and policy development in the region.

Assessment of Highly Polar Chemicals in Dutch and Flemish Drinking Water and Its Sources: Presence and Potential Risks

Highly polar chemicals are mobile in an aqueous environment. Analytical methods for these compounds in water are lacking. A combined target/nontarget screening method based on hydrophilic interaction LC coupled to high-resolution MS was developed. Thirty-two highly polar chemicals (including melem and melam) can thus be quantitatively measured in surface water and drinking water, and the MS data can be screened for unknown compounds. This is the first time a method for the determination of melem and melam in water has been described. The method is complementary to existing target and nontarget methods for less polar substances and can be applied for (drinking) water quality assessment. In a screening study in The Netherlands and Flanders, 12 of the 32 compounds were encountered in groundwater, surface water, and drinking water at levels between 0.01 and 4.2 μg/L. Concentrations in drinking water were compared with (provisional) guideline values to assess whether these may pose a concern for human health. In one drinking water sample, the concentration of dichloroacetic acid exceeded the provisional guideline value, indicating that health effects cannot be excluded on the basis of lifetime exposure. For most chemicals, reliable drinking water guideline values could not be derived due to the limited available of toxicity data.

Quality assessment of the noncarbonated-bottled drinking water: comparison of their treatment techniques

ABSTRACT This study presents a comparison among different-bottled drinking water commercially available in Lahore Pakistan. For that, five locally produced drinking water brands and four national brands were selected. Different physical, chemical and microbiological parameters like EC, pH, salinity, TDS, Na+, K+, Ca2+, Mg2+, Cl−, F−, Fe3+, SO4 2-, NO3-, PO4 3-, Arsenic (As), total coliforms and faecal coliforms/Escherichia coli were analysed . Results showed that there was a remarkable difference in the quality. Analysed data exposed that EC range was 141–298.3 μS/cm, pH 7.35–7.95, Salinity 0.1 ± 0.02 ppt, turbidity 2.13–2.45 NTU, TDS 85–182 mg/L, sodium 12–71.2 mg/L, potassium 0.1–2.4 mg/L, calcium 16–40 mg/L, mag- 30 magnesium 2.5–35 mg/L, chloride 35–95 mg/L, fluoride 0.29–0.94 mg/L,Iron below detectable limits to 0.17 mg/L, sulphate s 22–120 mg/L, phosphates 0.023–0.17 mg/L, nitrates 0.9–3.6 mg/L and arsenic were 0.0005–0.01 mg/L in these brands of drinking water. The analysed data was compared with the PSQCA, US–EPA and WHO standards. In only one brand of water, the concentration of sodium (71.2 mg/L) and arsenic (0.01 mg/L) was higher than permissible limits. For microbiological contamination brand E (80 colonies/100 mL sample), C (25 colonies/100 mL sample), S (100 colonies/100 mL sample) and K (15 colonies/100 mL sample) were .Some of these water brands examined were deficient in essential minerals like S brand in which Magnesium was only 2.5 mg/L and K and G brands in which calcium was 16 mg/L and 20 mg/L, respectively It was observed that treatment plants having raw water of low TDS 60 or those whose process based on 50% mineral dosing and 50% blending were cost-effective. Data presented in this study are important because it can be considered as baseline data for future.

Drinking Water Quality Assessment and Predictive Mapping: Impact of Kota Stone Mining in Ramganjmandi Tehsil, Rajasthan, India

Drinking Water Quality Assessment and Predictive Mapping: Impact of Kota Stone Mining in Ramganjmandi Tehsil, Rajasthan, India

Drinking water quality assessment in the water around a clay mine in Kannur district, Kerala

In the present investigation, the drinking water quality assessment in the water sources around china clay mine in Madayi Panchayath of Kannur District, Kerala, has been done. A study has been undertaken to understand, whether the quality of drinking water has any adverse effect from the mine which has been stopped mining for the last few years. The water samples were collected from ten randomly selected open wells around the china clay mine. The water quality parameters such as turbidity, pH, electrical conductivity, acidity, alkalinity, total dissolved solids, total hardness as (CaCO3), and presence of calcium, magnesium, chloride, fluoride, iron, nitrate, ammonia, sulfate, and phosphate are identified and quantified following appropriate methods and techniques. The results obtained were compared with the permissible limit suggested by the Bureau of Indian Standards for drinking water specification (IS 10500: 2012). It is observed that, some of the open well samples have excessive hardness and alkalinity. This may be attributed to the wastes disposed from the china clay mine as the lands nearby this mining site are filled and leveled with these wastes. The prolonged consumption of water from these wells may cause various health disorders to the inhabitants. Hence, it is advised to process the water from such wells to reduce the hardness and alkalinity for safe consumption. In addition to this, in depth studies on heavy metal content of water are also needed to assess the quality of water sources in and around the china clay mine region, for the safe consumption.

Contaminants of Domestic Rural Spring Water Sources in Bushenyi-Ishaka Municipality, Western Uganda

Globally, water-borne diseases have continued to challenge the health conditions of both developed and developing countries. In Uganda, most water-borne diseases are known to be the leading causes of serious health burden among the inhabitants. The study objectives were to characterize microscopic isolates using biochemical tests as well as identify the possible sources of contamination of spring water which is the commonest source of water used by rural inhabitants for domestic activities in Bushenyi-Ishaka Municipality, Bushenyi district, Western Uganda. Samples of spring water were collected from all accessible spring water sources in Bushenyi-Ishaka Municipality, Western Uganda. A total of 48 spring water samples were collected using 500 ml sterile glass bottles. The sources of contamination of the spring water samples were determined using a Sanitary Inspection Checklist which was designed using some standard response factors from a collection of standard reference checklists for drinking water quality assessment. Distribution of isolates and indicator pathogens of fecal contamination recovered from positive samples shows 77.8% from Nyakabirizi, 75% from Ishaka and 52.63% from Central divisions. Among the isolates, <i>Pseudomonas</i> spp and <i>Shigella</i> spp appeared more frequent with overall percentage of (52.63%) and (45.83%) whereas, <i>Klebsiella, Staphylococcus aureus</i> and <i>Escherichia</i> coli were found in (31.25%), (12.5%) and (6.25%) respectively. Sanitary inspections showed that springs in Ishaka Division posed a much higher risk (66.7%) of bacterial contamination compared to what was observed in Central (58.3%) and Nyakabirizi (58.3%) Divisions. All the sampled water sources were contaminated hence they posed substantial risk to users in the communities. Regular water examination and quality control including microbial assessment of all water sources should be maintained in the three Divisions of the Bushenyi-Ishaka Municipality, Western Uganda.

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.

Groundwater quality assessment for drinking purpose: a case study from Sindh Industrial Trading Estate, Karachi, Pakistan

Drinking water quality assessment is an essential tool to address suitability of drinking water and condition of aquifer environment. This study is aimed to assess the groundwater quality in the Sindh Industrial and Trading Estate (SITE) area of Karachi. We have collected groundwater samples from 24 boring wells, at different depth ranging between 100 and 150 ft., and tested for various physicochemical parameters. We have analyzed the spatially distributed groundwater samples in the under study area by following multi-field assessment (statistical estimation, spatial mapping, and hydrofacies distribution). Water quality is evaluated through physical parameters (pH, electrical conductivity, total dissolved solids, total hardness, turbidity) and chemical parameters, including major ions (sodium, potassium, calcium, magnesium, chloride, sulfate, bicarbonate, nitrate), minor elements (iron, manganese), and trace elements (zinc, nickel, cobalt, chromium, and copper). The concentration of parameters is varying with following range: pH (6.95–7.84), EC (4050–35,600 μS/cm), TDS (2020–17,800 mg/L), TH (890–8100 mg/L), Na (123–930 mg/L), K (10–68 mg/L), Ca (340–8260 mg/L), Mg (176.17–1725.9 mg/L), Cl (1028.05–15,420.75 mg/L), SO4 (122–960 mg/L), HCO3 (1900–5025 mg/L), NO3 (35.52–227.08 mg/L), Fe (41–79 ppb), and Zn (32–1638 ppb). The results of physiochemical parameters were subsequently compared with national and WHO standards. All the sample results were found above the prescribed standards, except the pH level. These parameters were interpolated through ArcMap tools, which showcase the spatial distribution of water quality in the study area and helped us to identify the anomalous water quality parameters. The Piper diagram used to model the ionic relationship and relative concentration of the major cations and anions dissolved in the groundwater samples. The data show the variability among six hydrochemical facies; Ca–HCO3 type (n = 7), Ca–Cl (n = 7), Na–HCO3 (n = 5), Na–Cl (n = 2), Ca–SO4 type (n = 2), and Mg–Cl (n = 1). This baseline study will signify in monitoring groundwater quality of SITE area and provide footnotes to investigate the variability of hydrofacies and diffusion of industrial discharge in hydrological environment of shallow aquifer in the study area.

Drinking Water Quality Assessment of Ergene River Basin (Turkey) by Water Quality Index: Essential and Toxic Elements

Ergene River Basin is the most significant aquatic habitat for Thrace Region and also one of the most polluted watersheds in Turkey. The objectives of this study were to determine some essential-toxic element accumulations in drinking water of settlement areas located in Ergene River Basin and evaluated the water quality in terms of local public health. Drinking water samples were collected from 30 stations in dry (summer) season of 2018. Cluster Analysis (CA) was used to classify the investigated elements and villages and Weighted Arithmetic Water Quality Index (WAWQI) was used to assess the water quality. According to results of elemental CA, 11 statistically significant clusters were formed in terms of elemental densities and according to results of locational CA, 3 statistically significant clusters were formed in terms of drinking water qualities. According to results of WAWQI, the risk sequence of the elements in drinking water of the system as follows: Se > As > Mo > B > Ba > Cr > Pb > Mn > Ni > Cd > Cu. Although Ergene River Basin is known as a very contaminated freshwater ecosystem, it was determined that the groundwater of the basin has I. - II class water quality, in general. Selenium accumulations detected in almost all the investigated villages exceeded the drinking water limit of 10 ppb. Arsenic, boron and molybdenum accumulations detected in some villages exceeded the drinking water standards. Although concentrations of some elements in some locations were exceed the limit values and recorded as quite high levels, the majority of investigated element concentrations in drinking water of the basin have been found to be in the range of human consumption standards.

A novel method: using an adenosine triphosphate (ATP) luminescence-based assay to rapidly assess the biological stability of drinking water.

The rapid and credible evaluations of the microbial stability of a drinking water distribution system (DWDS) are of great significance for ensuring the safety of drinking water and predicting microbial pollution. Conventional biostability assessment methods mainly focus on bacterial regrowth or evaluation of the level of nutrients that support bacterial regrowth. However, such methods are time-consuming and have many limitations. An adenosine triphosphate (ATP) assay can rapidly measure all active microorganisms and is known to be a useful method to assess the microbial activity of drinking water. The measurement of ATP has been used for more than a decade in the field of drinking water research. This article reviews the application of an ATP luminescence-based method to assess the biostability of drinking water and discusses the feasibility of ATP measurement as a parameter for quickly evaluating this criterion. ATP measurement will help researchers and water managers better monitor the biological stability of drinking water from the source to the consumer's tap. This review covers the: (1) principle and application of the ATP measurement in drinking water quality assessment; (2) comparison of the merits and demerits of several methods for evaluating the biostability of drinking water; (3) discussions on using ATP measurement in evaluating biostability; and (4) improvements in the use of ATP measurement in evaluating biostability. At the end of this review, recommendations were given for better application of the ATP measurement as a parameter for monitoring the microbial quality of drinking water.

Detection of Antibiotics in Drinking Water Treatment Plants in Baghdad City, Iraq

Persistence of antibiotics in the aquatic environment has raised concerns regarding their potential influence on potable water quality and human health. This study analyzes the presence of antibiotics in potable water from two treatment plants in Baghdad City. The collected samples were separated using a solid-phase extraction method with hydrophilic-lipophilic balance (HLB) cartridge before being analyzed. The detected antibiotics in the raw and finished drinking water were analyzed and assessed using high-performance liquid chromatography (HPLC), with fluorometric detector and UV detector. The results confirmed that different antibiotics including fluoroquinolones andB-lactams were detected in the raw and finished water. The most frequently detected antibiotics were ciprofloxacin with highest concentration of 1.270 μg L−1in the raw water of Al-Wihda plant, whereas the highest concentration of levofloxacin was 0.177 μg L−1, while amoxicillin was not detected in this plant. In contrast, ciprofloxacin was found in both raw water and finished water of Al-Rasheed plant and recorded highest concentration of 1.344 and 1.312 μg L−1, respectively. Moreover, the residual amount of levofloxacin in the raw water was up to 0.414 μg L−1, whereas amoxicillin was shown to be the most detectable drug in the raw water of Al-Rasheed plant, with a concentration of 1.50 μg L−1. The results of this study revealed the existence of antibiotic drugs in raw and finished water and should be included in the Iraqi standard for drinking water quality assessment.